By Dan Shea

“The secret of steel has always carried with it a mystery. You must learn its riddle, Conan. You must learn its discipline. For no one—no one in this world can you trust. Not men, not women, not beasts. But steel; this you can trust.”—Conan the Barbarian’s father as he points to a sword he’d made.

It’s probable that most English-speaking readers of SADJ have seen John Milius’ adaptation of the Robert E. Howard stories in “Conan the Barbarian.” Entrenched in our modern martial culture, many of us jokingly quote the movie’s lines, because on an elemental level, it speaks truths to fighting men. The Riddle of Steel—it calls us; we philosophize around it, perhaps jokingly, but there is always a truth hidden in the words. At the core, the various answers appear to be contradictory: First, steel is strong and flesh is weak; Second, the opposite—flesh that wields the steel is strong, and steel is nothing without that; Third and perhaps most important, that the will and determination to use the steel in righteous endeavor is the true strength.

In fact, the Riddle of Steel is solved if all three of those are blended into one truth.

In the United States military, we have a group called SOCOM (USSOCOM)—it is comprised of warriors, working for warriors, to enhance their fighting capabilities. At the risk of being trite, this brotherhood is dedicated to using steel in righteous endeavor, and they train hard to have the physical capabilities to wield the steel, and, of course, their weapons are almost always the best that can be found. Started in 1987 to create a unified command for US Army, Navy, Marine and Air Force special operations groups, a significant part of the mission is new equipment.

In the modern fighting arena, in that hardened place that is called “downrange,” increasing distances of engagement as well as armoring of targets are challenging the warriors. There have been many attempts to address this—not all failed, but few are chosen by the warrior leadership. Barrett Firearms has been chosen more than once …

One item of “steel” that has been chosen by SOCOM to be at the forefront for these warriors, is the newly adopted Mk22 Mod 0 “ASR” Advanced Sniper Rifle—the next evolution of Barrett Firearms Manufacturing’s MRAD rifle system. For SOCOM, where the physical strength and the righteous will are, the Mk22 very nicely completes the triad of the Riddle of Steel.

Barrett’s MRAD Concept

To understand the Barrett MRAD (Multi-Role Adaptive Design) rifle requires some background information. You can get the spec sheet story by searching “MRAD” online; our job at SADJ is to help the readers really understand the Mk22 system. Creating an accurate rifle that can interchange calibers is a unique challenge. Easy enough to change out a barrel and bolt, but to do so and maintain true precision accuracy, that is an entirely different matter. There have been many systems with interchangeable barrels, especially in machine guns; but those are area weapons, not point weapons. This has to be made in a man-portable manner as well, so steel is too heavy a choice for the chassis.

“The Riddle of Aluminum” doesn’t sound quite so interesting, but in fact that is where Barrett’s engineers went to create the MRAD/Mk22. There are eight “Thousand” series of aluminum alloys and some oddities; each has a commonality within its group. Pure aluminum is a very soft metal and requires additives (alloy) and treatments to gain strength. What are called the 7000 series aluminums are aluminum/zinc alloys with percentages of other metals that dictate the actual number. When searching for a material to CNC mill the MRAD monolithic receiver, the light weight of alloys and reasonable cost are a quick draw; but out of the hundreds of potential alloys, which one?

Starting after World War II, an alloy used by many in the aircraft industry is 7075 (a Japanese mix). It is an alloy of 90% Aluminum, 5.6% Zinc, 2.5% Magnesium, 1.6% Copper and 0.23% Chromium; some various tiny amounts of other metals are used as well. This lightweight, easily tempered and machined 7075 is ideal for use in firearms, and 6061 (6xxx—Silicon as main additive, not Zinc) and 7075 are alloys favored in the “AR” industry. Almost every written description of an AR will say “7075 T6 Aluminum” as if it was magical transition of knowledge to a reader. Actually, in the 5.56mm AR platforms, the real benefits of 7075 don’t fully show up. However, Barrett’s engineers are smart enough to know those other attributes solve almost every issue the MRAD faced, and in particular, the split collet nature of the barrel clamping. More on that later.

After cold rolling (adding about 4–6 times the strength) we get to the second part of the magical “7075 T6” invocation, the T6, which is the tempering. In the case of Temper 6 the 7075 is heated to 840ºF (450ºC) for approximately 2 hours, solution quenched, and an artificial “ageing” is physically done by resting at 250ºF (120ºC) for 24 hours (yes, this is a heat treatment). Of the many treatments that can be done, this method (called precipitation strengthening) ensures that the precipitates (tiny particles less than 0.001mm in diameter composed of aluminum and the added alloy metals) forming inside grains and on the grain boundaries produce excellent mechanical strength all through the material and add excellent surface-wear resistance. This is where the phenomenal elongation tolerance of 7075 T6 comes in. But that’s not the best thing…

“OK, Dan, so what is this about the split collet and Barrett engineers?” 7075 with a T6 temper has excellent tensile strength (74,000–78,000 psi) and yield strength of 63,000–69,000 psi. This is all great news for the 5.56mm, 6.5mm and 7.62mm AR builds, but it is the elongation tolerance before breaking of up to 11% that caught the Barrett engineers’ eyes. This is the exact right material tolerance (and heat tolerance) for heavier calibers like the Lapua and Norma Magnums.

The icing on that cake is that with changing calibers, using a split-collet-style clamp built into the upper receiver, the material must elongate and clamp, over and over, maintaining its original form on each return. 7075 T6 is ideal for this.

There are many parts to the MRAD as presented by Barrett, but the most critical is maintaining the accuracy in different barrels that are field changeable. The split collet is the key.

Why tighten to exactly 140 inch-pounds (in-lb)? We go back to the Riddle of Aluminum and that 11% maximum flex before breakage on 7075 T6. We don’t want to flex anywhere near that much, but seating a barrel in an accurate rifle must be done precisely in order to lessen barrel harmonics. Accuracy comes from tightly repeatable events in the physics of the rifle. Get rid of variables in barrel harmonics; tighten them up; shoot a tighter group. In discussion with Barrett, they indicated that when tightening up over 90 in-lb on these screws the group stabilized, and at 140 in-lb, the barrel was supported perfectly, the aluminum sides of the collet area were not overstressed, and the steel screws didn’t distort the threads in the aluminum. Thus, 3.5 inches of 360-degree-supported barrel clamped properly to rigidify it with the monolithic receiver results in the ability to have extreme accuracy from a field changeable rifle. This is the real heart of the rifle.

“The MRAD itself is a manually operated bolt-action rifle fed from a 10-round detachable magazine. It is designed to be a rugged, configurable, precision rifle system; the MRAD can quickly be converted to multiple calibers or barrel lengths. With M-LO[K] mounting slots at 3, 6, and 9 o’clock, its handguard offers a rigid, highly adaptable interface for attachment of rails, electro-optics and other accessories.”—Barrett manual description

[su_custom_gallery source=”media: 83382,83383″ limit=”40″ link=”image” width=”220″ height=”170″ title=”never”]

Magazines

Longtime readers know this author is a magazine fanatic. Feeding the weapons is often one of the hardest parts of weapon design, particularly in semi- or fully automatic firearms. In the case of a bolt action, it’s not as complex, but it still must be perfect, or you will experience misfeeds. The 10-round MRAD magazine is perfectly designed for presentation and in four basic flavors to properly present cartridges of different length/shoulder location. A properly treated flat spring is used to keep even presentation of the follower, ensuring the cartridge ramps into the chamber without cant.

The first MRAD (now called the Large Breech gun) was in .338 Lapua Magnum, and the magazine has no identification letter and zero ribs on it. After the MRAD was fully developed in different calibers, a system was needed for visual and tactile identification. The Mk22 comes with C- and D-type magazines:

A: .338 Lapua Magnum 6 ribs

B: .300 Win Mag/7mm Rem Mag/.300 PRC 4 ribs

C: .308/6.5 Creedmoor/.260 Rem 3 ribs

D: .338 Norma Magnum and .300 Norma Magnum 6 ribs

The obvious question to end users is whether A and D magazines are interchangeable—no, not reliably. The D magazine is specifically designed to accommodate the shorter shoulder location of the .338 Norma Magnum and .300 Norma Magnum cartridges; you could feed them in the A magazine but probably lose some reliability in feeding. Vice versa, if you had the .338 Lapua Magnum conversion kit for the Mk22, which is after all an MRAD, the A magazine would be needed.

The ASR Award 

Date: 03/11/2019
Issued From: HQ USSOCOM – Tampa, FL
Contract #: H9240319D0002
System: Barrett MRAD Rifle System
This is a 5-year Indefinite Delivery/Indefinite Quantity (IDIQ) contract for the Advanced Sniper Rifle and various components identified herein including three barrels in the calibers listed below, spare parts and Barrett AML338 suppressors. No optics are included.
The maximum quantity that shall be purchased is a total of 2,675 units.
The maximum contract value for all orders issued shall not exceed $49,936,299.50.
Calibers: .338 Norma Mag; .300 Norma Mag; 7.62x51mm

Mk22 Mod 0: The Changes from Other Programs

In the first place, the Mk22 does not need the large breech to small breech conversion unit—that was only on the early MRADs in .338 Lapua Magnum to smaller calibers when Barrett added them, and the Mk22 is purpose-designed from the current MRAD, using one homogenous breech for all calibers. The calibers in the Mk22 Mod 0 are the following and no others. There are other USG and DoD groups that add the .300 PRC or 6.5mm Creedmoor kit, but not for ASR. Could you add them? Yes, but it’s not currently authorized in the Mk22.

[su_table responsive=”yes”]

[/su_table]

The Mk22 rifle uses an M-LOK system as opposed to Barrett’s proprietary system on the MRAD. The Mk22 has the toggle bolt disassembly and a captive bolt pin.

The Mk22 Mod 0 is in the above calibers only, uses the Harris 6- to 9-inch bipod with a cant dial lock and is Coyote in color. The US Navy MRAD is Flat Dark Earth in .300 PRC and also uses the Harris bipod. The Mk22 does not use a monopod, but the bag rider is included. DoD MRAD issues the Accu-Shot monopod and no bag rider. Regarding the cheek piece, the Mk22 has the positive lock with increments, and the DoD MRAD has a friction lock with free adjustment. Several other differences are that the Mk22 safety has pictograms, and the DoD MRAD is S/F red and white; the trigger for Mk22 is fixed as I mentioned, but the DoD MRAD has a fully adjustable trigger that bottoms out at 1.75 pounds; and the Mk22 barrels are fluted stainless steel, DoD MRAD barrels are not fluted and are carbon fiber constructs. There are a lot of small changes and variations between the Mk22 and the DoD MRAD, but that’s not really our subject here.

[su_image_carousel source=”media: 83390,83391″ limit=”2″ slides_style=”minimal” crop=”16:9″ spacing=”no” dots=”no” link=”lightbox” target=”self” autoplay=”5″ image_size=”thumbnail”]

In addition to the MRAD and manufacturer markings, the Mk22 Mod 0 has US markings on it for issue model, etc.

USSOCOM Advanced Sniper Rifle Requirements

• Must be convertible to fire 7.62mm NATO, .300 Norma Magnum and .338 Norma Magnum cartridges.
• Must not exceed 17 pounds with an empty magazine but is ideally 13 pounds or less.
• Must not exceed 50 inches when fully extended, but is ideally 40 inches.
• Must not exceed 40 inches when collapsed for transport, but is ideally 36 inches.
• Must perform with at least 1 MOA accuracy for the 7.62 NATO and .300 Norma Magnum at 300 yards. Ideally .5 MOA.
• Must perform with at least 2.5 MOA accuracy for the .338 Norma Magnum at 300 yards. Ideally 1.5 MOA.
• Must have a modular flash or sound suppressor.

Calibers

Recently, the SOF community has tried a variety of calibers. The list is dizzying, and if you imagine the testing that has been done, it has occupied a lot of procurement people and design engineers, as well as end users. Here are just a few.

• 6mm Creedmoor
• 6.5mm Creedmoor
• 6.5mm Grendel
• .260 Remington
• .264 USA
• 6.8mm SPC
• .300 PRC
• .300 Norma Magnum
• .338 Norma Magnum
• .338 Lapua Magnum
• And now, 6mm ARC

Jimmie Sloan—Changing the Course

As the rest of the military/LE community (and this author) were variously adopting .338 Lapua Magnum and .300 Win Mag and finding some issues with these calibers in field use (not reliability, other issues), a parallel development had been going on in Willis, Texas. A very devoted long-range shooter named Mr. Jimmie Sloan was working on some new long-range loads, starting about 2005.

To some, Jimmie comes off more than “a little bit country,” and his down-home euphemisms might camouflage the brilliant mind inside there. Frequently, the most interesting leaps forward in technology come from a genius working in his garage—John Browning’s barn/workshop, Gene Stoner’s designs started in his garage, and heck, Carbine Williams did the M1 Carbine in jail!

Rumor has it, a room full of school-taught mechanical engineers tried to have a bit of fun at Jimmie’s expense, and it didn’t work out the way they expected. I asked Jimmie about it; he said, “I told them I didn’t have the schooling they did, but I had 50 years of experience designing, studying and shooting every day, and that over 8 years I hand-made brass and over 190,000 rounds of what became .338 Norma Magnum and made sure of every level of performance. I then asked them how many of their college degrees concentrated on ballistics, ammunition and firearms design. You could hear the crickets.”

The hard fact is, getting a degree in mechanical engineering is not a key to being able to design firearms—many graduating students find out very quickly that the firearms world is basically OJT. You might have training in metals, materials, even heat engines (that’s what firearms basically are) and ME101, but you need to apprentice all over again to be in firearms/ammunition design. The US education system simply doesn’t have firearms design in the curriculum. You can hope to work with someone who has 50 years’ experience and is willing to share it. You have to get your hands dirty. Besides, as the late Jim Schatz used to say, “Any day at the range beats a day at the office!”

Jimmie’s original designs used 240-grain (gr) MatchKing and 230-gr Berger bullets in the .300 Norma Magnum and 230-gr Berger bullets in the .338 Norma Magnum. The performance was superb, with barrel life in the 3,000-plus rounds. These are all excellent projectiles, and Jimmie designed the cartridges for the performance he wanted. Jimmie worked with General Dynamics on their Medium Machine Gun in .338 Norma Magnum, helping get that program moving.

Rumor also has it that one of the government arsenals changed the .300 projectile to a 215-grain and opened up the chamber, with resulting loss of performance and knocking barrel life down to 700 rounds or so. Jimmie’s reply is the eternal designer’s lament: “I gave you a balanced system; you changed something and then complained about the symptoms.”

In any event, the .300 Norma Magnum adopted now has a 215-grain OTM projectile, but Barrett ensured the chamber is “right,” and they’re getting 3,000-plus rounds life. The Barrett engineers worked with JGS Precision for chamber reamers on the MRAD and Mk22 programs (jgsprecision.com).

We should note here that Jimmie worked with Dave Kiff at Pacific Tool & Gauge (PTG) for much of his chamber design/reamers during the design project (pacifictoolandgauge.com). The headspace gauges this author used in the testing were PTG also. We checked headspace after barrel changes of course, as we got used to the system.

Ammo, Ammo, Ammo!

One of the most helpful ammunition companies in the US regarding law enforcement and special operations cartridges is Black Hills Ammunition (BH ammo) (black-hills.com). Started in 1981, Black Hills is synonymous with quality and reliability. This author has known Black Hills founder Jeff Hoffman for decades and has supplied numerous government contracts with BH ammo. Jeff was an active end user, is still a shooter, knows the needs and has the commitment to the end users. The BH ammo is solid, reliable and extremely accurate, and Jeff’s company worked very hard to come up with the loads needed for many other SOCOM projects as well as the Mk22 system. (Jeff was the 2010 recipient of the GySgt. Carlos Hathcock Award from NDIA Small Arms Committee.)

[su_image_carousel source=”media: 83392,83393,83394,83395,83396″ limit=”5″ slides_style=”minimal” crop=”none” captions=”yes” dots=”no” link=”lightbox” target=”self” autoplay=”5″ image_size=”thumbnail”]

Jeff was kind enough to send us a variety of the 7.62x51mm, .300 Norma Magnum and .338 Norma Magnum rounds exactly as used for the ASR program, and that is what we used in our testing. The Black Hills 7.62x51mm is legendary, a superbly accurate 175-grain projectile that is considered even with, if not better than, the military issue M118LR cartridge. In fact, many military and OGA groups use the Black Hills ammo. The .300 Norma Magnum and .338 Norma Magnum supplied to us show the clear results of what SOCOM was looking for during development—see the target section of this article. During development of the Mk22 system, the government awarded a sole-source contract to load reference ammunition to Black Hills. Part of that ammunition contract included a “surrogate” cartridge in .338 Norma loaded with the Sierra 300-grain OTM MatchKing that rifle manufacturers could use in development of the .338 Norma barrel for the system. This was done because of the expense of the AP-loaded cartridge and the close ballistic match between the 300-grain Sierra and the Lapua AP529 projectile. So, in short, there are two different projectiles that have been loaded in .338 Norma: the AP529 and the Sierra 300-grain OTM MatchKing. Only the AP529 is designated as the projectile in XM1162 (.338 Norma Magnum cartridge for the ASR). Many end users want the non-AP round to be adopted also, for use on ranges that can’t accept the AP round.

We also used some of the RUAG 7.62x52mm SWISS P Precision ammunition; longtime readers of SADJ will remember that in 2019 this author tested their palette of 7.62 offerings—seven various tactical rounds that have different jobs, but match point of impact; a truly desirable attribute. Unfortunately, RUAG was not in the competition, but it performed as well as expected.

The ammunition contract to supply the Mk22 Mod 0 “ASR” program did not go to Black Hills; earlier this year it was awarded to Ultra Defense Corp. Ultra Defense, as contract holder, has awarded a subcontract to Capstone Precision Group for manufacturing the cartridges. Capstone will be assembling the cartridges from subcontracted components—Capstone is the US sole distributor for Berger, Lapua, SK and Vihtavuori, among others. The single-year SOCOM agreement is for approximately 1 million rounds of ammunition: 800,000 rounds of .300 Norma Magnum with 215-grain OTM Hybrid Berger projectiles and Lapua-made cases. There will be 200,000 rounds of .338 Norma Magnum and 300-grain AP529 projectiles—both projectiles and cases are from Lapua, a NAMMO company, the AP529 is a NAMMO product and is NOT an OTMHC (Open Tip Match with a Hardened Core) as in numerous publications; it is an Armor Piercing Full Metal Jacket round with Tungsten Carbide Core. Excellent choice, in this author’s opinion, and more importantly the choice of the experts at SOCOM who exhaustively studied and fired tens of thousands of rounds. You can see the results on the targets later in this article. (Ultra Defense is sending SADJ some of the issue ammo for a separate test.)

Optically Speaking

[su_list]

1. Eyepiece
2. Eyepiece lock ring
3. Power throw lever
4. Power zoom ring
5. ZeroStop™ elevation adjustment
6. Contract-specific UltraMount
7. Contract-specific removable laser platform
8. Capped windage adjustment and battery compartment (Opposite side: Parallax adjustment)
9. Objective/Objective lens

[/su_list]

[su_custom_gallery source=”media: 83423,83424″ limit=”3″ link=”image” width=”220″ height=”170″ title=”never”]

The days of putting rounds on target with open sights are long in the past. I’m not saying that no one shoots open sights; most shooters have favorite Garands or ‘03s they can ring a gong or cut an impressive group with. The fact is that in military and LE scenarios, accuracy is king, lives are on the line, and high-grade optical sights, opto-electronics and the training to use them are the way to get there. The operator pulling the trigger and the chain of command up-hill have to answer for the accuracy of the shot and where the projectile lands, among other issues in this very complicated world.

The optic for the Mk22 PVPS (Precision Variable Power Scope) was not contracted with Barrett; but this is a system, and the chosen optic is a critical part of it. The Mk22 Optic contract was awarded to Nightforce® (nightforceoptics.com).

I should mention at first, that the Mk22 Mod 0 has a top rail slope of 10 MIL (ECP), and the DoD MRAD has a 20 MOA slope.

In that separate contract, SOCOM chose the Nightforce MIL-SPEC ATACR™ (Advanced TACtical Rifle) in two flavors, both with 34mm tubes and Horus Vision TREMOR3™ reticles in MRADs. The example sent to us for testing was the MIL-SPEC ATACR 7-35×56 F1 with custom mount. The other option SOCOM chose is the MIL-SPEC ATACR 5-25×56 F1. “MIL-SPEC” indicates these scopes are not the commercial version of the ATACR; they must meet the MIL-SPEC.

While this author found shooting at 1,000 meters with the 35x was very helpful, the real end users generally only use the 25x level for engaging and having more field of view; the 35x end is used for observation.

Nightforce is well-known for the rock solid scopes they build—they’re made to go in the field. The reticles chosen for the ASR are First Focal Plane and of course etched on glass; as magnification is used the reticle will also be magnified. (The Second Focal Plane is behind the magnification lenses and stays at one grid size no matter the magnification—useful in some scenarios, but this author prefers FFP, target adjustments at range seem much more precise.) Nightforce optics are also well-known for their light transmission capability. Looking through a Nightforce optic is almost breathtaking in clarity; clearly this was a factor in SOCOM’s choice of the optic. One bit of lore from the end users—highly trained snipers—many have told this author that at extended ranges the Nightforce scopes are decidedly better at seeing deeper “into” shadow areas compared to other scopes, a function of the NF lens treatment. This is very hard to quantify, but many end users swear by this.

The mount chosen is the Nightforce MIL-SPEC UltraMount with the RAP-I Laser Rangefinder attachment bridge; a soft case is supplied. Nightforce supplies a tool kit for the Optic system, with some additional tools not in the ASR kit supplied by Barrett: Torque tools of 100 in-lb and 25 in-lb, as well as a T15 Torx head bit.

Note: The Nightforce MIL-SPEC ATACR described here was also selected for the US DoD MRAD in .300 PRC caliber.

The optic selected for the US Army PSR version of the MRAD was the Leupold Mark 5HD 5-25×56 with MIL Grid 4 Reticle.

Nightforce ATACR 7-35×56 F1 

[su_table responsive=”yes”]

[/su_table]

Suppression

There are many considerations regarding suppressors for rifles; suppression of noise is not the only one. From the outset, SOCOM knew there would be a compromise on sound reduction for the 7.62 and .300 Norma Magnum calibers if they wanted one suppressor to use on all the calibers and barrels in the Mk22 Mod 0 system. Barrett’s engineers knew this as well; the bore had to accommodate the largest diameter projectile. The alternative would be to carry two suppressors, but for the small decibel reduction gained, the weight gain to the system would not be worth it. Thus, SOCOM chose one suppressor—the AML338. Barrett makes excellent suppressors, the AM series thread onto the outer section of the patented muzzle brake with the DC series being threaded directly to the barrel. Obviously, the AM series won out. The AML338 suppressor is on the Mk22. The DoD MRAD has the AM338. The main difference is that the AML338 has a secondary lock and of course the color; AML338 is Coyote, AM338 is FDE.

[su_table responsive=”yes”]

[/su_table]

Each of the Mk22 barrel muzzle brakes has an identical diameter threaded outer section, and the muzzle brake is actually designed with being part of the entry chamber of the suppressor in mind.

Where some loss of suppression occurs is that the AML338 has its bore diameter keyed to the .338-inch projectiles, and when the .308- or .300-inch (.300 Norma Magnum projectiles are actually a .308 diameter) projectiles are fired through, there is some blow-by that raises the decibel level. Honestly, to the ear it wasn’t very noticeable when we changed calibers. Then again, all of us who were shooting have high frequency hearing loss so the only way to really quantify it was using a proper meter like a Larson Davis 800B, which we did not have, and Dr. Philip H. “Doc” Dater wasn’t with us.

Barrett manufactures the AML338 suppressor out of a high-strength Titanium alloy. They use modern CNC machining and orbital welders to keep the hoop strength with the lowest amount of material. Precision bore alignment maintains accuracy, reduces point of impact shift and aids in flash reduction.

During our firing, we found that almost all of the groups tightened up when we fired suppressed. This phenomena is frequently observed in well-made, well-matched rifle systems. Doc Dater covers this in the Suppressor Class he teaches at Phoenix Defence, so I’m deferring to him on this:

This tightening up of a group happens the majority of the time as long as there is no misalignment. You also get a 20–50 ft/s velocity increase, not germane to this discussion. There are two factors in play. First is a change in barrel harmonics from the mass of the suppressor (and how tightly it is screwed on). Second (and probably a greater effect) is that on uncorking, the gas has approximately twice the velocity of the projectile and rushes around the bullet which then has to traverse the various shock waves that can cause a little instability. The can shears off this gas in the entrance chamber much in the way muzzle brakes do. The gas loses velocity quickly as it interacts with the air. Look at the three high-speed photos from a 20-inch barreled .223 gun.

[su_image_carousel source=”media: 83437,83438,83439″ limit=”3″ slides_style=”minimal” crop=”none” spacing=”no” captions=”yes” dots=”no” link=”lightbox” target=”self” image_size=”thumbnail”]

Per Doc Dater: “These were consecutive frames taken at 15,000 fps. The sun was just right so the lower image is a shadowgraph of the direct image above and better shows the shock waves. This series is used in my talk (with about eight other frames) as part of a flash study. The Mach disk is a high pressure, high temperature shock wave that actually ignites the carbon monoxide to make the fireball.”

Range Day 1: Intro to the Mk22

I’ve heard that government users have regularly seen groups in the sub-half minute range. Obviously, no one discusses the specifics of accuracy requirements or testing results other than what is put out publicly. Even if I knew, I would self-censor; we’re talking about national defense. I will say, that our testing confirmed the rumors.

SADJ is a firearms magazine—our writers and almost all of the staff are shooters of various levels and experience. Long-range shooting is a specific skill, and testing a rifle system like the Mk22 Mod 0 requires the person on the trigger to have the skill, not just be a “good shot.” Dennis Powell, a well-known civilian accurate shooter, joined us at the range for 3 of our days, along with long-range shooter Harry Bovie, Chuck Bolding, who is highly respected in training circles, Damon Bolding, a gunsmith at Phoenix Defence, and this author. Dennis was chosen by me to do the record shooting so I could hide my own deficiencies. We fired from bench; I did not want to get down and fire from “Rocking Horse Prone.”

Our chosen range? Boulder Rifle & Pistol Club in the high desert near Boulder City, Nevada. Excellent ranges, good people (brpc1.org).

Our first day at the range was learning the rifle. Before we started, we knew the rifle was coming in from another tester, so we had to bring it all back to zero and learn it from the start. By the end of the morning, we were hitting not-so-impressive groups at 100 yards and ringing the gong at 1,100 yards. Not time for serious shooting yet, time to study.

Range Day 2: Learning the Lessons

We went back to the shop at Phoenix Defence. We got out the manuals and filled in the blanks. This is a rifle, not a complex space station or mega-computer; it is a rifle system, however, and it takes study, trial and error to learn to make all the components perform at top level. This was a very boring day with Lessons Learned and studied out.

Range Day 3: Printing Paper 100

[su_custom_gallery source=”media: 83449,83450,83451″ limit=”3″ link=”lightbox” target=”blank” width=”140″ height=”180″ title=”always”]

[su_custom_gallery source=”media: 83454,83455,83456″ limit=”3″ link=”lightbox” target=”blank” width=”140″ height=”180″ title=”always”]

[su_custom_gallery source=”media: 83457,83458,83459″ limit=”3″ link=”lightbox” target=”blank” width=”140″ height=”180″ title=”always”]

After digesting the information for another week, it was back to the range. There were many sub-half-minute-of-angle groups, the best being a .300 Norma Magnum Berger 215-grain from a suppressed rifle—this was center to center under 0.3 inches. Very respectable group for Dennis. We now felt ready to take on the longer ranges.

Range Day 4: Long-Range Day

18 August 2020: Today was the day we’d been waiting for—we’d learned the system, and we were reaching out to 1,000-plus yards, for the record.

Conditions Day 4

Shooting times: 07:30-11:30
Pressure Hg: 27.66–27.71
Humidity: 22% down to 14% at 11:30
Wind: 5–8 MPH cross-range R-L
Temp: 96–110˚F
Elevation: 2,450ft

Vortex Razor Spotting Scope

Just as difficult as it is to be a sniper in the field without a spotter, it is the same at the range. Two sets of eyes work together and make the task quicker, and the feedback helps.

Vortex Optics has an excellent reputation; they gather light and give clarity that is at a top level. I’d honestly never looked through a spotting scope compared to this, too often the spotting scope is an afterthought on range day. Once you use the Razor® HD, and if you’re a serious shooter or end user, there’s no question of skimping on this essential tool again.

We had the availability of the Vortex Razor HD 27-60x85mm angled spotting scope with an MRAD reticle eyepiece. The reticle on the Vortex is MRAD, matching the MRAD system in the Mk22 optic. The Vortex has the ability to change to straight spotting with no reticle or to a reticle matching MOA if the optic being used is MOA. This is accomplished with an interchangeable eyepiece. Range can also be calculated easily with either reticle if there is an object of known dimensions in the field of view (vortexoptics.com).

MRAD vs. MOA? Without getting into a street fight like “9mm vs. .45ACP,” let’s keep it simple. SOCOM called for MRAD, and that’s what everyone is using. MOA is “Minute of Angle,” and old guys like your faithful correspondent usually use that. MOA is an angle measurement; in effect, 1 MOA at 100 yards is one inch. Take that to 1,000 yards, 1 MOA is 10 inches. MRAD stands for “Milliradians,” also a unit of measurement of angle. Lord help you if you have a scope in MRAD and other devices in MOA, you’ll be doing lots of unnecessary math in an already complex program such as long-range shooting. Both are based on the 360 degrees of a circle, and the discussed measurement is an arc that is a very small part of that circle when discussing accuracy in shooting. Without doing all the long division, at 1,000 meters, a one MOA click on your scope is 3.5 inches of adjustment on a target; and a one MRAD click on your scope is 3.9 inches. It makes a difference. Thus, if you’re using an MOA optic, make sure you have the MOA reticle eyepiece for your Razor HD spotting scope, and vice versa if you had the MRAD like we did in this test.

Vortex describes the Razor HD as having a “sophisticated triplet apochromatic lens system” and honestly, that’s a bunch of twenty-dollar words that don’t mean much to most people. Here’s basically what is being said: Triplet means there are three pieces of glass lined up; apochromatic means there isn’t any false color, shifting red and blue light to a different plane. Multiple lenses tend to shift colors and that has to be designed out. Thus, Vortex has the “sophisticated” job of getting three lenses to line up perfectly and stay there in long-term, rugged use, while keeping true color to the viewer’s eye—no small task with lens finish and refraction. This costs money, and the Razor HD is an expensive spotting scope, listing out at around $1,900. If you’re a professional, this is short money for what you are getting. Color can make all the difference in identifying targets and non-targets.

We used the Vortex PRO GT tripod to mount the spotting scope. It has a balance weight hook to the center, strong, lightweight legs and a very steady panning head.

The Vortex Razor HD 27-60x85mm spotting scope is under testing with many special operations groups, and we know it is currently with the Scout Sniper Section of Panther Team JMRC Operations Group in Germany.

Tools and Changing Calibers

As all men-at-arms know, you need the kit for your weapons. Tools, cleaning kit, gauges, and in a soldier’s kit, what is there has to be carefully considered regarding need, bulk and, of course, weight. SOCOM specifies the TO&E (Table of Organization & Equipment) it wants. The Fix It Sticks Torque Limiters (store.fixitsticks.com) are gaining in popularity, and SOCOM as well as Barrett and Nightforce call for this product in the inch-pound (in-lb) requirements. With this system, there is no need for carrying a torque wrench, each needed setting has its own torque limiter, preset and marked. These fit into any standard ¼-inch driver, including the Fix It Sticks T-Way T-Handle that is supplied, and any standard ¼-inch bit fits into the receptor end. The torque limiter will spin once the correct torque has been reached (within +/- 6%)—no over-torquing. Torque measurement is not required in removal, so no kit is needed for that (this is a measurement-only tool and not relevant here). I have not seen the Nightforce tool kit, but the Nightforce mount requires at least two things SOCOM did not dictate for Barrett’s contract: 100 in-lb torque limiter and a T15 Torx bit—I’ve no idea if Torx or Torx PLUS. I do know there was room in the Barrett supplied kit, so I added them for our field work.

Speaking of the Torx head screws and bits in the Barrett-issue kit, these are not regular Torx bits; they are Torx PLUS, denoted by the “IP” in front of the size, “IP30” instead of “T30” on a regular Torx. You can strip the star heads out of the bolts if you don’t use the PLUS bits. The lobes of the star points are more square on the PLUS heads, stronger than standard Torx and can handle more torque IF you use the correct bit. As noted by your faithful correspondent over the decades, nothing ruins quality firearms like a large hammer and a small mind.

The Mk22 Mod 0 Tool Kit

• 140-in-lb miniature torque limiter
• 65-in-lb miniature torque limiter
• 45-in-lb miniature torque limiter
• 25-in-lb miniature torque limiter
• 15-in-lb miniature torque limiter
• T-Way T-Handle Wrench
• 8 different bits (IP30 Torx, IP27 Torx, IP25 Torx, 5/32-inch hex, 1/8-inch hex, 5/64-inch hex, 1/16-inch hex) NOTE: The “IP” Torx are Torx PLUS!
• ½-inch socket and ¼-inch bit adapter set
• Deluxe zippered pouch with 3×5-inch Velcro® and MOLLE rigging on reverse
• 3 long Tekton® punches (1/16 inch, 3/32 inch, 1/8 inch) replacement parts 66061, 66063 and 66064

The only deficiency this writer saw in the kit was no “Snap Caps.” I like to train trigger release, and it’s not the healthiest thing for the firing pin to undergo unsupported release. If SOCOM wanted it, they would have specified and Barrett certainly could have provided. However, .300 and .338 Norma Magnum are not cartridges with COTS (Commercial Off-the-Shelf) snap cap availability. I used my standard A-Zone 7.62x51mm, but the .300 and .338 Norma Magnum cartridges have significantly shorter cases than .338 Lapua Magnum, and the bullets are seated deeper as well. The Norma cartridges have less taper, a slightly sharper shoulder and a slightly longer neck—once again, no COTS availability. I contacted the originator of the high-grade snap caps, Eric Kennard, from Harbour Arms. (harbourarms.com), and we discussed at length. I sent him some of the live rounds to work from, and within a few weeks he produced two of each for our use. Perfect. The custom work cost more than the COTS products he sells for almost every sniper/precision caliber, but it’s worth it. As a side note, Harbour Arms is a Disabled-First-Responder-owned company. I forwarded his contact to Barrett and SOCOM; hopefully there’s some support there—it would be nice to see Eric and Cindy get a shot at supplying.

Headspace Gauges

There were no headspace gauges supplied. They’re not needed at the operator level according to doctrine, even with all the barrel changing inherent to the system. I used my Pacific Tool & Gauge headspace gauges, PTG worked with Jimmie Sloan on the chambers, and Barrett used JGS Precision chamber reamers and gauges. It became clear early on that the Barrett MRAD system is virtually perfect. Our confidence in properly installing barrels and bolt heads went up immediately; this is a very reliable system.

Cleaning: The Right Way

[su_custom_gallery source=”media: 83473,83472″ limit=”3″ link=”lightbox” target=”blank” width=”220″ height=”170″ title=”never”]

Once the firearm is cleared, the upper receiver can be opened upward by pressing the release lever on the lower (note the silver lug). The bolt can then be removed to the rear, and the rear bolt guide and front bolt guide can be removed.

Bolt Disassembly

[su_custom_gallery source=”media: 83495,83496″ limit=”2″ link=”lightbox” width=”220″ height=”170″ title=”never”]

The bolt pin is pushed through—it can only go one way, and it is captured so it won’t come out. When you reach the proper position, the bolt will come out forward. Reassembly is the reverse.

Changing Calibers

[su_custom_gallery source=”media: 83501,83500″ limit=”2″ link=”lightbox” width=”220″ height=”170″ title=”never”]

Changing calibers is a simple yet precise operation. The barrels and bolt heads will be engraved with their caliber—match them up. Remove the magazine then the bolt as above, and change out the bolt head to the new caliber.

Unscrew the two barrel screws, but not completely. Remove the old barrel to the front and then slide in the new caliber barrel into the receiver; make sure the index pin at the top seats all the way. Starting with the rear screw, tighten the two barrel screws to 140 in-lb using the torque limiter marked for that and the T30 PLUS (IP30) bits. Be careful not to strip the screw heads. Assemble the firearm and ensure the bolt is properly rotating into position.

Changing Safety

The Mk22 Mod 0 has the same feature as the MRAD regarding the reversible safety selector. This is operator preference regarding safety manipulation. It’s a quick change.

With the upper and lower opened, the selector, in this case on the right, is moved to the halfway position between “safe” and “fire.” It will drop into a detent, enough to be felt. It is then pushed out to the selector side. Place it at the halfway position on the other side of the receiver and insert, then rotate to “safe.”

Forward Handguard

The Mk22 features the same M-LOK systems as the MRAD at 3, 6, and 9 o’clock positions, and some short Picatinny-style rails are supplied. In this case, the Harris 6–9 inch bipod can be seen with the LaRue Tactical® adapter and the rotating cant knob (not lever).

Case & Carry Bag

I’m not sure if the system hard case was chosen by Barrett or SOCOM. In any event, the Pelican™ 1770 is perfect. The system is laid out where all parts can be easily gotten to—this is a full system “Overseas Case” for deploying. Pelican paved the way on heavy-duty rolling hard cases and wasn’t afraid to work with the military. It’s heavy, but it’s not supposed to be dragged around in the field; it’s supposed to protect the equipment and nest it so it’s easy to visually ID a full system and choose needed components. The hard case is for the base camp (sorry, that’s old-speak—for the FOB). The soft case is for the field.

Armageddon™ Gear was chosen for the soft case for the Mk22 Mod 0 as well as the suppressor mirage cover. The stitching and bar-tack work are flawless. This is a very well-made case, and it is thought out for the end user, clearly by end users. The company’s advertising has some braggadocio, and I was skeptical, then I looked this case over carefully. Damn. Will Sonnett (Walter Brennan in “The Guns of Will Sonnet”) used to say “… and I’m better than both of ‘em—no brag, just fact,” referring to his sons and gunfighting. It’s pretty clear that the Mk22 case is based off of Armageddon Gear’s CSASS precision rifle case. To start with, that would be 1000D (Denier) CORDURA® fabric. Denier is the thickness of the textured nylon filaments used in the fabric. 1000D is very, very durable, for heavy duty uses—most soft cases use 500D or less. Armageddon uses a fabric that is solution-dyed which guarantees a homogenous color, and since this is a low-IR signature finish, that will be homogenous also. I spent a couple hours exploring all the ways to use the case, what I could put where, set it up for backpack with the straps and tried it as a drag bag. I carried it slung and used it rocking horse prone to keep the sharp desert pebbles from causing my delicate constitution discomfort. Seriously, this is long-time gear, versatile and well thought out. Excellent choice by SOCOM and Barrett, Armageddon Gear: “No brag, just fact” (armageddongear.com).

In Conclusion

I’ll keep it short and sweet. Barrett’s MRAD as the Mk22 Mod 0 is absolutely deserving of the award they received. We fired a significant amount of ammunition, suppressed and unsuppressed; changed calibers out numerous times and went between 100 and 1,100 yards. All of us were impressed. I don’t remember a discouraging comment, and as all shooters know, put a bunch of us together with a new system, and there will be grumping and carping. None at all with Mk22. SOCOM’s due diligence in testing is clearly optimum; without seeing the inside of their thought process, it’s clear the end results have paid off. From this humble correspondent’s view, the end users and procurement testing personnel at SOCOM have hit a clear home run with the Mk22 Mod 0 selection. I would bet that Barrett Firearms staff are proud of this (Nightforce as well!), and I would expect to see many follow-on contracts for this system by US end users, and especially the overseas SOF community taking advantage of the exhaustive testing done to adopt the Mk22. Bravo!

Advancing Combat Lethality

Recently the influential and well-known NDIA Small Arms Symposium combined with some sister NDIA groups to add GARM (Guns Ammunition Missiles and Rockets) and UEA (Unconventional Emerging Technologies) to create the NDIA Joint Armaments Conference. For 2020, they’ve added in the Robotics group.  This event is not going to be an outlying conference away from the action; it will be at Fort Benning, Georgia, the “Home of the Infantry.”

The conference itself is in Columbus, Georgia, and is lining up to be a world-class group of presentations and panels including NATO Panels on small arms as well as various ballistic and innovation groups. On Monday afternoon, there will be capabilities briefing from the various schools at Ft. Benning. The keynote speakers on Tuesday consist of multiple Generals and will provide the direction that military procurement will be headed, from the shakers and movers who drive that whole process. There will also be four prestigious awards: Chinn, Hathcock, Ambrose and Triffiletti.

During the conference, there is an exhibit hall with innovative companies who are vying for new contracts and are presenting new designs and weapons. Papers will include new advanced technologies from Cased Telescope Ammunition to One Way Luminescence Tracer technology. Exhibiting in the hall guarantees the ability for the vendor to live-fire at the all-day Thursday live-fire demonstrations.

The live-fire demonstrations will be held at two separate ranges on Thursday—medium and large caliber at one range in the morning and small caliber in the afternoon. You must be a conference attendee to attend the live-fires, and you will be able to get hands-on with many of the latest innovations in small arms. For most, this is the highlight of the event!

The word straight from NDIA:

Armaments and Robotics

Description

Hosted in the middle of a defense industry hub, this newly joint event offers attendees a unique conference and exhibition experience. With an overall theme of Advancing Combat Lethality, keynotes, networking events and exhibits will be shared. However, different breakout sessions will occur simultaneously and be either armaments- or robotics-specific. With this structure, attendees have the freedom to personalize their agenda by choosing to attend any and all sessions that are of the most importance and interest to them. At the same time, attendees have the opportunity to branch out and explore sessions and topics that may be new to them.

*Please note: some concurrent sessions of this conference are restricted to DoD, U.S. DoD contractors and DOE Only who are citizens of the U.S. Provisions of applicable DoD policies do no permit waiving the DoD and U.S. Citizenship requirements for attending these sessions.

This event is open to the press, except for the closed sessions noted above. 

Why Attend?

• Participate in a first-time event that brings together the Armaments and Robotics communities under a common theme and purpose.
• Network with a diverse crowd of innovators from industry, government and academia.
• Curate a personalized agenda based on your interests and expertise with keynotes speeches, technical presentations, dynamic demonstrations, networking opportunities and more.
• Uncover the growing role of arms, guns and ammunition, rockets and missiles and unconventional and emerging armaments systems.
• Identify the importance of robotic training systems, combat vehicle autonomy and armament, situational awareness, joint lethality in contested environments, manufacturing and readiness, logistics and maintenance and international participation by allies and partners.
• Attend a live-fire demonstration of armaments technology and a demonstration of robotic capabilities.

Who Attends?

Find your place at the defense industrial base’s intersection of armaments and robotics, where advancing combat lethality is a top priority when it comes to supporting the warfighter.

*Numbers are based on 2019 conference attendance.

Contact

Trish Wildt – Conference Logistics
(703) 247-2586
twildt@ndia.org

Ms. Tatiana Jackson
(703) 247-9479
tjackson@ndia.org

Product description for each caliber

Caliber:

Projectile style:

Projectile weight:

Velocity FPS:

Energy (Ft. Lbs.):

Accuracy:

How packaged:

Cartridge weight:

% weight savings:]

TRUE VELOCITY INC. [HAS 3 products]

True Velocity’s ammunition is over 30% lighter than conventional brass rounds. TV’s proprietary design innovations reduce overall weapons signature. Our lighter weight ammunition reduces transportation costs and increases operational advantages. Through the collaboration of science, technology and ballistic subject matter experts, True Velocity’s ammunition is specifically designed to meet the rigorous demands of the next generation weapon and modernization strategy.

tvammo.com

5.56x45mm NATO

True Velocity composite case 5.56x45mm Precision Ammunition is designed to incorporate many capabilities not found in other ammunition. The fully loaded composite case is more than 30% lighter than brass and acts as an insulator against heat fatigue in weapon chambers. Proprietary development and production methods allow the ammunition to meet velocity and function requirements in all USSOCOM-tested weapons. The projectile is an Opened Tipped Match bullet designed for consistency and accuracy. True Velocity Composite ammunition has been designed to function in harsh conditions and in all USSOCOM weapon systems.

Caliber: 5.56x45mm NATO

Projectile style: Lightweight Composite/OTM

Projectile weight: 77 grains

Velocity FPS: 838.2m/s (2,750 ft/s)

Energy (Ft Lb): Proprietary

Accuracy: Proprietary

How packaged: MIL-SPEC

Cartridge weight: 144 grains

% weight savings: More than 30% lighter than brass

7.62x51mm NATO

True Velocity composite case 7.62×51 Precision Ammunition is designed to incorporate many capabilities not found in other ammunition. The fully loaded composite case is 30% lighter than brass and acts as an insulator against heat fatigue in weapon chambers. Proprietary development and production methods allow the ammunition to meet pressure, velocity and function requirements in all USSOCOM-tested weapons. The projectile is a Sierra Match King, 168 grains. The unique design of the projectile assures superb accuracy, flat trajectory and high momentum delivery with low sensitivity to crosswinds at all ranges. True Velocity Composite ammunition has been designed to function in harsh conditions and in all USSOCOM weapon systems.

Caliber: 7.62×51 NATO

Projectile style: Lightweight Composite/ Hollow-Point Boat Tail

Projectile weight: 168 grains

Velocity FPS: 814.7/s (2,673 ft/s)

Energy (Ft Lb): Proprietary

Accuracy: Proprietary

How packaged: MIL-SPEC

Cartridge weight: 264 grains

% weight savings: More than 30% lighter than brass

.50 BMG / 12.7x99mm NATO

True Velocity’s composite case .50 BMG / 12.7×99 NATO Ammunition is designed to incorporate many capabilities not found in other ammunition. The fully loaded composite case is 30% lighter than brass and acts as an insulator against heat fatigue in weapon chambers. Proprietary development and production methodologies allow the ammunition to meet velocity and function requirements in all current DoD weapons, as well as to function across a wide spectrum of harsh operating environments.

Caliber: .50 BMG / 12.7x99mm NATO

Projectile style: Lightweight Composite/ FMJ, M33 Ball

Projectile weight: 660 grains

Velocity FPS: 885.4 m/s (2,905 ft/s)

Energy (Ft Lb): Proprietary

Accuracy: Proprietary

How packaged: MIL-SPEC

Cartridge weight: 1,259 grains

% weight savings: More than 30% lighter than brass

MAC, LLC

.50 Cal Polymer Cased Ammunition

The only polymer rounds qualified by the U.S. government, fielded and used in live operations. MAC .50 Cal Polymer Cased Ammunition

meets specifications for MIL-DTL-10190F for velocity, pressure, accuracy, bullet pull and function at ambient and temperature extremes. Compatible with all US-MIL caliber .50 machine guns and rifles with standard .50 BMG chambers.

info@macammo.com

Caliber: .50

Case: Hybrid polymer/metal design

Projectile style: Customer Choice

Projectile weight: Proprietary

Velocity FPS: 2,905 fps (885 m/s)

Energy (Ft Lb): Proprietary

Max Pressure: 65,000 psi

Accuracy: Single-digit Standard Deviation for velocity

How packaged: 100 rounds linked 4/1 tracer in M2A2 box, or per customer specifications

Cartridge weight: 96 grams (typical)

% weight savings: Up to 30%

NAMMO

5.56 PSRTA

Plastic Short Range Training Ammunition (PSRTA) is intended for use in training areas where range restrictions preclude the use of full-range standard service ammunition. Lead-free primers remove nearly all trace amounts of toxins reducing risk to users. Currently in use at Special Operations training facilities.

nammo.com

Caliber: 5.56×45

Projectile style: Polymer force on target (training)

Projectile weight: Proprietary

Velocity FPS: Generally matched to 855A1

Energy (Ft Lb): Proprietary

Accuracy: Similar to M855 at 20m

How packaged: 30 per box

Cartridge weight: 3.0g–3.3g (48 ± 3 g)

% weight savings: Proprietary

TEXTRON SYSTEMS [HAS 3 Products]

Textron Systems’ CT ammunition uses a novel ammunition design, in which the projectile is seated within a cylindrical case. The CT design allows for up to 37% weight savings, compared to equivalent-performing brass cartridges.

textronsystems.com

5.56mm CT

The 5.56mm CT reduces total system weight by 40% and maintains the same capabilities as the M249 conventional system.

Caliber: 5.56mm CT Cased Telescoped

Projectile style: M855

Projectile weight: 62 grains

Velocity FPS: 3,020

Energy (Ft Lb): 2,509

Accuracy: Proprietary

How packaged: Proprietary

Cartridge weight: 127 grains

% weight savings, cartridge: 33%

% Weight savings, cartridge and link: 39% (Reference cartridge & link M855/M27)

6.5mm CT Carbine

The 6.5mm CT Carbine system provides a 35% ammo weight savings with 30% increased lethality, compared to 7.62mm conventional systems.

[ADAM—THE 2 CHARTS BELOW HAVE EMBEDDED TABLES I CAN’T REMOVE.]

7.62mm CT MMG Cased Telescoped

With a total system reduction of 37%, the 7.62mm CT MMG matches the performance of the M240 conventional system.

June 21, 2019, in the Swiss Alps outside of Montreux: “Smoke on the Water” playing on the radio as we drove around hundreds of mountain curves, some at 320 degrees, uphill, downhill and finally to the destination on a remote Swiss military range where a 1600 meters target could be engaged. None of us, however, was planning on shooting at over 600 meters, but the range was beautiful nonetheless. RUAG, the Swiss company that owns many international divisions in munitions, had decided to push further into the U.S. (and world) tactical and precision shooting markets, using their well-established Swiss P ammunition program, and we were to test six of the .308 (7.62x51mm) offerings.

“Like a Swiss watch” is a common saying used to discuss a product of admirable reliability and quality. That’s for a reason: The Swiss have a reputation for meticulously made products and for machinery that is the most modern and reliable. Swiss P ammunition is a product of RUAG Ammotech AG, and, of course, the “P” stands for “Precision.” After shooting it, this author was thinking “P” for “Perfection.”

We went for a factory tour in Thun, Switzerland, where RUAG manufactures the ammunition. They are true manufacturers, not just assemblers of components. Starting with intense quality assurance inspection of any raw materials, rolls of brass and copper sheeting go into one end of the production lines, disks are stamped, made into cups, extruded and pickled, extruded, formed, trimmed and pickled again, primer pockets made, necks annealed, and the bullets are made on parallel lines. This allows RUAG’s quality control engineers to control every aspect of the process to ensure as near to perfect repeatability in each component. Final assembly is done with very reliable high-grade primers and temperature stable powder brought from other sections of the building to the assembly machines. There are state-of-the-art inspection stations that search for flaws and if any appear, knock any errant product from the line. After that, the product undergoes visual inspection and packaging as well as testing of selected lots.

That repeatable perfection in every component and dismissal of any imperfection is what it takes to make truly accurate ammunition. Anyone who has seen slow-motion photography of a bullet uncorking from a rifle muzzle knows how crazy it looks and automatically question how the rifle can even hit close to the same place with subsequent rounds. It’s all about repeatable events. In order to achieve true accuracy, you need a good, solid bedded rifle; every action should be identical for the interior ballistics of that rifle, correct lands and grooves as well as barrel length. Uncorking should be from a perfect chamfered exit, the platform firing it should be stable (that platform is the shooter, who also needs skills), and of course the ammunition must be homogenous to an incredible degree. The targets we fired in this case, speak for themselves.

There are common threads between the offerings in each caliber from Swiss P (RUAG). In the case at hand, we were testing 7.62x51mm (.308 NATO) rounds.

Some of the features include:

• Match grade accuracy
• Coordinated ballistics between the various rounds in the same caliber
• Militarized crimping and sealing
• Optimized for semiautomatic and fully automatic weapons as well as bolt action.

SPECIFICATIONS FOR THE ROUNDS TESTED

——————–

The selection of rifles and optics RUAG brought to the range matched the expected quality of the Swiss P ammunition:

• Truvelo CMS 7.62×51 with Kahles K624i 6-24x56mm scope
• Blaser Tactical 2 with Schmidt & Bender PMII 4-16×50 scope
• Steyr SSG 04 with Kahles K624i 6-24x56mm scope

We fired three rounds of each type of ammunition, at each of 600m, 300m and 100m targets. RUAG engineer Michael Muster was the shooter at 600m from the bipod supported prone, and he chose the Truvelo CMS 7.62 with a Kahles K624i to start with. After each type of ammunition was fired, the hits were circled with coded shapes. His groups at 600m varied from 1 MOA to 1.5 MOA, a very respectable showing. On inspection of the primers, there was a bit of backflow, which was clearly an issue with this particular CMS rifle.

We then moved to 300m, and this author chose the Steyr SSG 04 with a Kahles K624i scope. I have fired Truvelos extensively, as well as the Blaser (both excellent rifles), and wanted to try the SSG 04. Each of the groups was within 1 MOA, with occasional floaters due to operator error—I was firing over a truck hood. The most amazing group was with the Swiss P Armour Piercing. It was well under .5 MOA, and the AP had lived up to its reputation as one of the most accurate rounds they make.

A storm was coming in very quickly, so we moved to 100m, and I fired three rounds over the truck hood, grouping under 1 MOA. We then quickly loaded up and got out of there before the storm hit.

Conclusion

RUAG Ammotec’s precision ammunition is everything they claim it is, and it is everything an accurate shooter or sniper could want. Explaining the nuances of firing different ammunition, slight changes in felt recoil and so on are pretty pointless and very subjective. Different rifles can be quantified, different calibers can be explained, but within a caliber range, unless there is a massive difference in powder loads or projectile weights, they’re the same. What matters is shot placement, repeatability and terminal performance. The terminal ballistics are explained by RUAG technicians and were not what we were testing.

This author can attest to the accuracy throughout the 7.62mm NATO Swiss P offerings; these rounds were taken from unopened cases and were clearly standard production. The consistency was outstanding. I suspect that well-trained snipers could drive any of these rounds at sub-.5 MOA on demand.

Contact

RUAG Ammotec AG

Uttigenstrasse 67

3602 Thun | Switzerland

Tel: +41 332 282 879

Fax: +41 332 282 644

Email: sales.ammotec@ruag.com

ruag.com

The name Thomas B. Nelson is synonymous with the small arms community of the last 60 years. Since Tom’s first book, The World’s Submachine Guns Vol. 1: Developments from 1915-1963, hit the small arms community in the early 1960s, his influence has been immeasurable. But where did this book come from, and is that the extent of Tom Nelson’s contributions?

A contemporary of Lt. Colonel George M. Chinn as well as one of his friends, Tom Nelson was brought into the small arms community due to his pre-existing fascination with the mechanisms and history by another small arms great, Col. George Burling Jarrett. Col. Jarrett had his Ordnance Museum on the Steel Pier in Atlantic City, NJ, in the post-World War I era and was instrumental in throwing Rommel’s armies back across North Africa by re-purposing hundreds of thousands of rifles, handguns and cannons to use other calibers, thus re-arming the weary fighters against the Nazis. In the post-World War II era, Col. Jarrett ran and advanced the Aberdeen Proving Ground Museum. The museum was a magnet for students of small arms, and in the mid-1950s when Col. Jarrett met a young soldier named Tom Nelson who was headed for the 82^nd Airborne, he shanghaied Tom over to the museum.

Tom Nelson’s time at Aberdeen was a crucible that forged him into one of the most influential small arms people of the last half century. His unrestricted access to the thousands of firearms and accessories at the Ordnance Museum fed the curiosity he had since his youth. Trips to Europe to study the firearms prototypes and oddities in the factories and museums just tossed more kindling on the fire. At Aberdeen, Tom’s contributions to the Foreign Weapons Intelligence knowledge are legendary.

That is where the first book came from, leading to similar tomes on machine pistols and assault rifles. Tom’s publishing company, Ironside International, searched the world for small arms books to publish in the U.S… Few readers of this magazine have not felt his influence.

However, like most Chinn Awardees, that’s just the beginning of Tom’s contributions. He worked on international arms deals with Sam Cummings, eventually doing some of the most important work in that field in the 1960s to 1980s. He was close friends with Eugene Stoner and chronicled the M16 and Stoner 63 designs from the genesis forward; he was friends with General Kalashnikov; with Gordon Ingram; with Uzi Gal; and many other famous designers. Tom was a confidant and worked with many U.S. Government and military groups. Captain William “Shep” Shepherd, U.S. Navy SEAL, astronaut and Commander of the First International Space Station supplied a recommendation for this award, reminiscing about Tom’s help with the SEAL Team weapons and many other small-arms-related services to U.S. forces.

From importing amazing piles of surplus arms and ammunition for the American shooting public, to Foreign Weapons Intelligence; from chronicling the historical and modern small arms designers and their work to supporting the designers, Tom Nelson’s influence is extraordinary.

One short story to illustrate Tom’s influence in the modern world—in 1963 Tom Nelson brought an Uzi submachine gun to the U.S. and gave it to General Decker, who though impressed, didn’t continue with purchases because “It’s not made in the U.S.” The U.S. Secret Service did, however, adopt the Uzi. That’s one story of many.

A testimonial from another Chinn Awardee (1996), none other than C. Reed Knight, Jr., puts it all in perspective:

“I could not agree more with your nomination of Tom Nelson. I have known him for over 40 years and have known Tom to be one of the best brain trusts of firearms knowledge in the world. He has written many books and papers that have educated many of our firearm designers. His relentless searching for innovative designs has helped to proliferate firearms technology.”

A polling of the 16 past recipients of the Chinn Award we could locate resulted in unanimous votes of confidence for Thomas B. Nelson to become the 2019 Lt. Colonel George M. Chinn Awardee. Combined with letters of recommendation from numerous industry icons and military personnel, it was a unanimous decision by the Small Arms Committee to elect Thomas B. Nelson as the 2019 Chinn Awardee.

prodas.com

The James Ambrose Award is presented periodically to recognize, in the opinion of the Small Arms Division Executive Board, an Industrial Firm that has made outstanding contributions to the field of small arms systems. Arrow Tech (and its dedicated engineering staff) was chosen for the 2019 Ambrose Award.

Arrow Tech broke the ballistics code on flight characteristics, both internally and externally, but few knew who they were. It was a well-guarded secret that a few companies used. Today, every major DoD agency and the majority of ammo manufacturers seek out Arrow Tech’s expertise. Arrow Tech created a program that has evolved into the state-of-the-art software for ammo and weapon companies use—that program is called PRODAS, Projectiles, Rocket, Ordnance Design Analysis System.

Once used primarily for medium and large projectiles, they are now the go-to company for small calibers starting at .177. Bottom line: you can now design a single- or multiple-piece projectile, load the powder of your choice, add the cartridge case with the chamber and barrel characteristics and launch it. The program will model and simulate this selection and predict the outcome before you cut the first chip. The award sponsor teamed with them to work the M&S on the barrel twist effort for the USMC M40A6 sniper rifle. The M&S coupled with radar data confirmed that 1:8 was the optimum configuration of the barrel and the AB39 7.62mm ammo.

The PRODAS software was the first program available to quickly reduce radar tracking data so engineers, scientists and designers had tangible results to improve their products. PRODAS analysis of radar tracks of the M855A1 projectile confirmed that the components were rotating independently of each other.

Arrow Tech is a small company with few, but all highly dedicated, employees. Hence the reason for the presentation of the Ambrose award—it’s not one individual—it’s a team. A majority of the small arms ammo and weapon manufacturers use their products. So do locations like the U.S. Army at Picatinny and Crane-NSWC. You can run a simple analysis or something as complicated as a 6 DOF (degrees of freedom) simulation. In short, Arrow Tech has provided, in response to the need of the DoD, government, end users and other industry OEMs, a product that has very actively changed the way they all work on ballistics design—in a very positive manner.

By Dan Shea

I’m writing this in the first person for a reason; I want to speak to our readers as directly as possible about a great influence in my life that I hope they can share in. After my Army time I went back to college in the mid-1970s—a much more serious young man than I had been in the 1960s. Courses in business and mechanical engineering were started. Unfortunately, I never finished—necessity was that I had to go to work, then wanted to start a family and finally start into business. The work I did included electrical and electronic. I integrated the first PCs into a robotic production line for one company and designed controls for DuPont’s robotic plywood manufacturing. This was all pioneering tech. My company did alternative energy homes and business construction, and it became a good-sized electrical contractor in New Hampshire. All the while, I was studying and working on weapons—military weapons. I designed my first suppressor in 1981. This is not a brag sheet; the readers have a general idea of the work I’ve done for military, governments, industry and the historical record.

What it is about is that I’m a guy who never completed my college degree. I’ve been offered honorary PhDs a number of times and didn’t take them because, well, I didn’t do the doctoral thesis to earn a PhD and didn’t believe I was really qualified anyway. I felt like I would be insulting people who spent 10 years excelling in academia while I was essentially in the dirt and working manual labor.

So, here’s a guy who was an Army grunt and then a cook, didn’t finish college, and yet over 45 years, I was able to work inside several complex technical industries and work at top levels. No subterfuge; I’ve always been upfront about not having a degree. Aside from all the other reasons for this success, such as having a loving wife/partner and great family, there has always been an organization I could turn to.

That is ASM International. It started in 1905 sharing the lore of steel making and blacksmithing, and by WWI it had become a shaker and mover; a Colonel from U.S. Army Ordnance joined to help sort the group a bit and gain direction. In 1933, the organization became the American Society for Metals (ASM).

In 1952, ASM formed the ASM Materials Education Network, then the ASM Metals Engineering Institute, and in 1957 seminars were started. Heat treating conferences were started in 1974. By 1989 the Ninth Edition of the Metals Handbook had grown to a 17-volume set comprised of 15,000 pages, 25,000 illustrations and 7,500 tables. In 1999, the now 20-volume set went onto 4 CDs.

I was introduced to ASM in the late 1970s. It has been a guiding light to me, even though I have not attended their countless professional seminars. They have amazing courses for beginners as well as for advanced professionals. What they have that I’ve been able access all this time is an unending pool of specific technical information and guidance. (Usually purchased second-hand, because, well, I’m frugal at times.)

Need to study up on failure in metal structures like firearms? ASM has fracture analysis and failure analysis handbooks, databases and courses. Trouble with heat-treating a new product? They have a whole society devoted to Heat Treatment. Crystallography—do you want to understand alloys and surface issues and what happens as you create a new product? You’re covered.

Need to really know what 7075 T6 means, on a gut level, not just reading words in some gun magazine written by an author who is parroting what a manufacturer said? How about the ASM Handbook Volume 2A: Aluminum Science and Technology (latest edition 2018)? It’s only $297, member price is $225. Sometimes members sell collections of the handbooks when they retire or whatever. At night you can sit and read the technical issues that will continue your life-long education. Many people think I have my PE, ME or EE, and I quickly explain I didn’t finish college and then tell them about ASM International.

This article in Small Arms Defense Journal is simply me trying to pass on to you, the reader, a place where you can get the real information on materials, metals, working with them and identifying issues. I hope you at least look up their website and explore a bit (asminternational.org). You might find a new home for your future growth. And not only that, when you join, as you should, you get a subscription to one of their magazines. I’ve always been partial to Advanced Materials & Processes.

The real subject of this article is passing on knowledge. I’ve spent a lifetime passing on that research and lore from the military/machine gun world. When we started “The Archive Project” on smallarmsreview.com it was to digitize and preserve the hundreds of thousands of manuals, test reports, photos, articles, etc., that had been preserved in my library as well as those of the Royal Armouries Museum in Leeds, England and Defence Academy of the United Kingdom, Shrivenham. The goal? To ensure future generations could do research quickly and surely and that this information would not be lost.

Likewise and on a much larger scale, ASM International has met that calling and is very actively promoting STEM subjects to high school students. That’s Science, Technology, Engineering and Mathematics. The United States is falling far behind other countries in the STEM areas, and it’s critical that we keep our youth interested and charging forward into innovation and new designs. My grandparents were born with a horse and buggy, then early automobiles and lived to see cars everywhere. I started with little tiny black and white TV screens and testing tubes at the hardware store on Saturday mornings with my father (an Electrical Engineer on nuclear power production in the 1950s-60s), and now I have a computer-integrated flat screen that covers a wall. The United States was a shaker and mover (not to disparage the brilliant people around the world; I’m an American and well, as world-traveled as I am, it still affects my perspective a bit). To get back in the saddle, the U.S. needs to teach the new generations that they can take part in exciting worlds to come—new innovations, new solutions, a better world, if they’re strong enough.

The ASM Foundation is a key to this. I encourage all of you to go to the ASM Foundation website and see what you can do on a local level to help students meet the STEM subjects—how to grow stronger, how to learn, how to participate in the future on a real level, not a superficial, snowflake level of selfies and symbolic gestures. Real, solid research and innovation that they can sink their teeth into, regardless of race, creed, color or sex. STEM doesn’t discriminate; it rewards commitment and hard-core study as much as natural talent. There is the high level of satisfaction that comes from personal initiative and success.

See how you can help the new generations … asmfoundation.org.

The Republic of South Africa has a short history compared to the human presence in the region; it was formed in 1961 after enduring more than 4 centuries of European influence and foreign control. The military effects of that presence have led to many events that are well-known outside of South Africa- the Zulu Wars, the Second Boer War, and South Africa’s participation in both the First and Second World Wars. While the primarily English and Dutch (Boer) colonization had been ongoing over those centuries, the discovery of diamonds and gold in the mid-1800s had vastly increased the influence over what had previously been only a location-focused importance to those countries. South Africa rules over the seas that lead between the Atlantic and Indian Oceans, and proved its worth to the British during two World Wars.

The Museum is situated in Erlswold Way in the northern Johannesburg suburb of Saxonwold adjacent to the Johannesburg Zoo and close to the recreational area of Zoo Lake. It takes a special trip to get there and that is well worth the time and effort. While the rich history of the region is covered in many ways, the primary displays that would be of interest to the readers of this magazine would probably begin with the Zulu Wars and the Second Boer War. The influence of South Africa in those World Wars is not to be understated.

There are some very interesting aircraft in the museum, as well as a large display area of cannon and howitzers. Our viewing was concentrated on the small arms. Since this issue of SADJ is being handed out at the AAD show, we hoped to give attendees an interesting museum to visit. One side benefit of visiting the museum, is that there is actually a store inside the main store, which has a collector’s corner of real historical items for sale. Usually all you can find are the current made collectables, but this author was able to purchase several historic medals. No national treasures are up for grabs or we would have offered on the “Pom-Poms” but it was certainly nice to have a military antiques dealer on premise.

The Ditsong Museum of Military History

The South African War Museum was opened in 1947 and underwent several name and control changes, and finally became part of the Ditsong Museums of South Africa in 2009.

Ditsong- National Museum of Military History
PO Box 52090
Saxonwold, 2132
Tel: +27 010 001 3515
www.ditsong.org.za/militaryhistory.htm

Right front view of one of the two Maxim “Pom-Poms” guarding the entryway.

Feed tray of a Maxim “Pom-Pom.”

1882-1904 uniform and gear used by South African forces.

1908-1937 display features the standby 1914 Lewis machine gun at bottom center.

Second Model FG-42 8mm (7.92x57mm) machine gun- the “Fallschirmjagergewehr,” an exceedingly rare German WWII machine gun for paratroops. Serial number is 02634.

View from the galleries section into the main area of cannon; in the front is a brass Maxim from Vickers Sons & Maxim Ltd; then an Austrian 07/12 Schwarzlose machine gun; and a Breda Model 30 machine gun on a rare light tripod.

ZPU-1 single mounted 14.5x114mm KPV machine gun.

1920-1950 semi-automatic and submachine gun display. Left column top to bottom: Model 1918/30 Beretta Gardone; Beretta Brescia Auto Carbine; Villar Perosa Semi-Automatic Carbine; Beretta MP38 SMG; Beretta MP38/42 SMG; Thompson M1A1 SMG. Right Column top to bottom: MP35 Bergman SMG; MP34 Bergman SMG; MP41 SMG; Vollmer Erma EMP SMG; Soviet PPSh-41 SMG.

1914-1945 Anti-Tank Rifles display, Top to Bottom: Mauser 1918 13.2mm “T-Gewehr” anti-tank rifle; Maroszek 35 anti-tank rifle; PzB 38/39 anti-tank rifle; Boys MK I .55 caliber anti-tank rifle.

After meeting with Bruce Gilchrist from Colt Canada during the Eurosatory exhibition this year, and viewing the SWORD in action during the Shrivenham Small Arms Symposia, this author is impressed.

Colt’s Manufacturing and Colt Canada have streamlined the future warrior concept to a point where it’s ready for theater.

The point of the SWORD is that it is a cohesive system- the spotter and the sniper become very close in communicating, enabling a very fast positive identification of a target along with engaging it. Spotter and sniper can be in different locations and double check each other for identification of target. SWORD also allows an almost instantaneous communication with command centers across the world- this is a truly valuable tool in today’s combat environment.

To quote from Colt Canada’s literature:

The SWORD Sniper System combines the Weapon Operator and Spotter functions of a Sniper Team and enables a high fidelity digital link between the Weapon Operator and Spotter that increases the assurance of a target engagement and reduces the time elapsed to identify and engage a target. With a SWORD Enable Sniper Team, both the weapon and spotter navigation and optical sensor data can be interfaced to the combat network for a greater situational awareness picture at higher command echelons.

The SWORD Enabled Weapon is matched with a SWORD Spotting Station. The SWORD Spotting Station consists of a tablet computer, spotting scope, surveillance chassis on tripod and a laser range finder. The Spotting Station has the capability to digitize the spotting scope image, combine it with the tablet GPS position and laser range finder range and pointing angles, to create a mensurated target that can be pushed to the SWORD Sniper Weapon or to the combat network.

SWORD Sniper System Function

As a Sniper Team, the Spotter would identify the target and create the mensurated target that includes the target image.

The target is then digitally passed to the Weapon Operator where the weapon operator aligns the weapon angle and range to the target position and compares the received target image to the image seen in the weapon scope.

The weapon scope image is digitized and passed to the Spotter’s tablet where the spotter compares the weapon scope image to the image of the target.

When target and weapon scope image are confirmed by the Spotter, the Weapon Operator is released to fire the weapon.

Both Spotter and Weapon Scope images can be pushed to higher command echelons if the target characteristics warrant it.

SWORD System Features

SWORD Systems are network and weapon agnostic. A SWORD System is integrated on to a weapon to operate with that weapon’s specific characteristics. The SWORD Systems use of open architecture communication standards ensures that a SWORD enabled weapon, readily integrates into any communications network. SWORD utilizes real-time range cards that can be shared and distributed within the military command structure communications network. The real-time range cards create a shared situational awareness that increases lethality and decreases engagement times through the removal of target ambiguity.

Drone views can be added in the tablets, creating a three dimensional aspect of the terrain. Many other types of information can be added as well, depending on the complexity of the mission. Weapon Cant, bullet compensation, environmental factors can all be quickly added into the sniper’s calculations.

From the demonstrations that SADJ received during the shows, the SWORD system is ready for prime time.

The bullpup concept has its roots in the early 20th century and by the 1950s several countries were trying to utilize the style, most notably the British with the EM-1 and EM-2 programs.

A “bullpup” style rifle means that the magazine feed and action have been moved to behind the pistol grip/trigger group, allowing a long barrel in a shorter package. The results in combat were quite evident at longer ranges when the U.S. M4A1 rifle with its 14.5-inch barrel had terminal issues, and the British SA80A2 that is the same overall length with a full 20-inch barrel, did not. For the British, the 1950s EM concepts had evolved into the 1970s 4.85mm “IW,” and then the modern SA80 series in service today. The Steyr AUG is another system that deserves mention, as does the French FAMAS F1
(nearing replacement).

Combat operations have been a constant way of life for the Israeli Tavor since the day it was fielded. Tavor TAR and CTAR rifles are on patrol around the clock in Israel and the border areas, and have participated in many firefights. The MTAR (Micro-Tavor) is quite popular and now a variation is marketed in multiple calibers as the X-95. 5.56x45mm, 5.45x39mm, 9x19mm and possibly the 7.62x51mm rounds are in the X-95. The Tavor platform has an international appeal as well.

The Tavor development program started in 1995 at Israeli Military Industries (now IWI) using a long stroke piston system like the Galil rifle, the AK47, and the Garand. This system is very reliable under almost any conditions, from sand to mud to surf. Tavor is ambidextrous in its controls, robust and well-made, lightweight, and perhaps most importantly, has excellent balance. The first reaction many have to the bullpup rifles is that they feel back heavy, and it is disconcerting to the operator used to a full length rifle. Tavor was designed to fit the operator very well, and the natural holds employed remove that feeling of unbalance. Training removes any remaining issues in that regard.

After a series of trials, the Tavor series was adopted by the IDF in 2006, thus, the 10th anniversary in use is upon us. Tavor is supposed to completely replace the M16 series in Israeli service by 2018. In use in over 24 countries at present, and featured in many Special Forces units around the world, the Tavor has come into its own.

SADJ wishes IWI and their flagship rifle all the best and a happy 10th anniversary.

Websites: www.iwi.us and www.iwi.net