September 30th, 2015

Bruce Piatt, “Mr. Versatile”, Wins World Shooting Championship

AccurateShooter Bruce Piatt WSC NRA2015 WSC Champion Bruce Piatt with $25,000 check. At right is Diana Muller, WSC women’s champion.

Bruce Piatt out-gunned 218 competitors to win the 2015 NRA World Shooting Championship (WSC), a 12-stage event that required mastery of all types of firearms. How did Piatt manage the win? Versatility. Unlike many top competitors who shoot one or two disciplines, over the past 30 years Piatt has shot anything (and everything) he could fit into his schedule. Piatt told reporters: “If it goes bang, you can count me in — whether it’s Sportsman’s Team Challenge, SOF Tactical, Precision Long Range, and Bianchi Cup — I’ll shoot anything.”

Piatt’s WSC performance earned him a $25,000 check from the NRA. Piatt has been noted for his ability to “break down” stages, creating a “plan of attack” that caters to his strengths. That ability gave Piatt a “winning edge” in the complex WSC match. Piatt out-shot many of the best action shooters in the world, including 2014 WSC champion SFC Daniel Horner of the USAMU, who finished second this year. Here are the Top 20 final standings. Note that Nightforce Optics Marketing Manager Sean Murphy finished eighth overall, pretty impressive for a fellow with a full-time job in the business world.

AccurateShooter Bruce Piatt WSC NRA

Bruce Piatt has won multiple world and national shooting titles. He is a 5-time Bianchi Cup National Champion and 5-time winner of the SOF World Tactical 3-Gun Championship. A former law enforcement officer, Piatt has won the USPSA Law Enforcement Division National Championship 20 times. Piatt is the founder of Bruce Piatt Training Concepts LLC, which offers Police, Military, and Civilian shooting instruction and pistol-smithing classes. For more information, visit

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September 20th, 2015

How to Make Angled Shots — USAMU Pro Tips with Praslick

On its YouTube Channel, the USAMU offers “Pro Tips” videos providing expert instruction on rifle marksmanship. One helpful video covers up/down angle shooting. In the video, SFC Emil Praslick III, one of America’s best long-range shooting coaches, explains how to determine up/down angle, and how to compensate for the angle using scope clicks. Praslick explains how gravity always works as a constant relative to the flat-ground distance to the target (which is distinct from the actual straight-line distance to target.)

The flat-ground distance is the actual distance over which the bullet will be affected by gravity. Use this as the basis for your elevation corrections. As Praslick explains, “this [flat-ground] distance will get less and less as the angle to the target increases [either up or down].” Once you know the straight-line distance to the target AND the exact angle of your shot, simple math lets you calculate the flat-ground distance to the target. Basically, to determine your flat-ground distance to target, you multiply the cosine of the shot angle by the measured straight-line distance to the target.

Application to Long-Range Hunting
Since the effects of angles increase with distance, Praslick explains that: “Unless the angle is extremely severe, [a hunter] really won’t notice these effects at ranges of 200 yards or less.” However, for long shots, hunters definitely need to compensate when taking angled shots. Praslick recommends that hunters print out a small chart with the cosines of common angles (20°, 25°, 30° etc.). In addition, hunters need an accurate ballistic table for their rifle and particular ammo. This should show the elevation corrections (in MOA or clicks), for 200 yards to the maximum range at which you may take a shot.

SFC Emil Praslick III is an instructor/coach with the USAMU. He also has served as a coach and “wind guru” with numerous U.S. Teams in international competition, including the U.S. Palma Team, which recently participated in the World Long-Range Fullbore Rifle Championship in Australia. Praslick has also coached the U.S. F-Open Class Team.

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September 12th, 2015

Handloading Safety Tip — Bullet Bearing Surface and Pressure

Each Wednesday, the U.S. Army Marksmanship Unit publishes a reloading “how-to” article on the USAMU Facebook page. This week’s “Handloading Hump Day” post covers an important safety issue — why you should never assume that a stated “book” load for a particular bullet will be safe with an equal-weight bullet of different shape/design. The shape and bearing surface of the bullet will affect the pressure generated inside the barrel. Visit the USAMU Facebook page next Wednesday for the next installment.

Beginning Handloading, Part 13:
Extrapolating Beyond Your Data, or … “I Don’t Know, What I Don’t Know!”

Last week, we addressed several key facets of Service Rifle reloading. Today, we continue our Handloading Safety theme, focusing on not inadvertently exceeding the boundaries of known, safe data. Bullet manufacturers’ loading manuals often display three, four, or more similar-weight bullets grouped together with one set of load recipes. The manufacturer has tested these bullets and developed safe data for that group. However, seeing data in this format can tempt loaders — especially new ones — to think that ALL bullets of a given weight and caliber can interchangeably use the same load data. Actually, not so much.

The researchers ensure their data is safe with the bullet yielding the highest pressure. Thus, all others in that group should produce equal or less pressure, and they are safe using this data.

However, bullet designs include many variables such as different bearing surface lengths, hardness, and even slight variations in diameter. These can occasionally range up to 0.001” by design. Thus, choosing untested bullets of the same weight and caliber, and using them with data not developed for them can yield excess pressures.

This is only one of the countless reasons not to begin at or very near the highest pressure loads during load development. Always begin at the starting load and look for pressure signs as one increases powder charges.

Bullet bearing surface length (BSL) is often overlooked when considering maximum safe powder charges and pressures. In photo 1 (below), note the differences in the bullets’ appearance. All three are 7mm, and their maximum weight difference is just five grains. Yet, the traditional round nose, flat base design on the left appears to have much more BSL than the sleeker match bullets. All things being equal, based on appearance, the RN/FB bullet seems likely to reach maximum pressure with significantly less powder than the other two designs.

Photo 1: Three Near-Equal-Weight 7mm Bullets with Different Shapes
USAMU Bullet Ogive Comparision Safety Reloading

Due to time constraints, the writer used an approximate, direct measurement approach to assess the bullets’ different BSLs. While fairly repeatable, the results were far from ballistics engineer-grade. Still, they are adequate for this example.

Bullet 1 (L-R), the RN/FB, has a very slight taper and only reaches its full diameter (0.284”) very near the cannelure. This taper is often seen on similar bullets — it helps reduce pressures with good accuracy. The calculated BSL of Bullet 1 was ~0.324”. The BSL of Bullet 2, in the center, was ~0.430”, and Bullet 3’s was ~ 0.463”. Obviously, bullets can be visually deceiving as to BSL!

Some might be tempted to use a bullet ogive comparator (or two) to measure bullets’ true BSL for comparison’s sake. Unfortunately, comparators don’t typically measure maximum bullet diameter and this approach can be deceiving.

Photo 2: The Perils of Measuring Bearing Surface Length with Comparators
USAMU Bullet Ogive Comparision Safety Reloading

In Photo 2, two 7mm comparators have been installed on a dial caliper in an attempt to measure BSL. Using this approach, the BSLs differed sharply from the original [measurements]. The comparator-measured Bullet 1 BSL was 0.694” vs. 0.324” (original), Bullet 2 was 0.601” (comparator) vs. 0.430” (original), and Bullet 3 (shown in Photo 2) was 0.602” (comparator) vs. 0.463” (original). [Editor’s comment — Note the very large difference for Bullet 1, masking the fact that the true full diameter on this bullet starts very far back.]

Please join us again next week as we examine other lesser-discussed variables that affect pressure and velocity during handload development. In the meantime, stay safe, and favor center!

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September 2nd, 2015

How to Improve Case Concentricity with Standard Seating Dies

USAMU Handloading Hump Day Seating Die Adjustment Stem TIR Concentricity Run-out

Each Wednesday, the U.S. Army Marksmanship Unit publishes a reloading “how-to” article on the USAMU Facebook page. This USAMU “Handloading Hump Day” article, the second in a series on improving concentricity, has many useful tips. If you use standard (non-micrometer) seating dies when loading some cartridge types, this article is worth reading. And visit the USAMU Facebook page next Wednesday for the next installment.

Once again, it’s time for USAMU’s “Handloading Hump-Day!” Last week, we addressed achieving very good loaded-cartridge concentricity (AKA “TIR”, or Total Indicator Runout) using standard, “hunting grade” reloading dies.

We explained how to set up the Full-Length Size die to float slightly when correctly adjusted for desired case headspace. We also cited a study in which this method loaded ammunition straighter than a set of [higher grade] match dies from the same maker. [One of the keys to reducing TIR with both sets of dies was using a rubber O-ring below the locking ring to allow the die to float slightly. READ Full-Length Sizing Die TIP HERE.]

Now, we’ll set up a standard seating die to minimize TIR — the other half of the two-die equation. As before, we’ll use a single-stage press since most new handloaders will have one. A high-quality runout gauge is essential for obtaining consistent, accurate results.

Having sized, primed and charged our brass, the next step is bullet seating. Many approaches are possible; one that works well follows. When setting up a standard seating die, insert a sized, trimmed case into the shell-holder and fully raise the press ram. Next, back the seating stem out and screw the die down until the internal crimping shoulder touches the case mouth.

Back the die out one-quarter turn from this setting to prevent cartridge crimping. Next, lower the press ram and remove the case. Place a piece of flat steel on the shellholder and carefully raise the ram. Place tension on the die bottom with the flat steel on the shellholder. This helps center the die in the press threads. Check this by gently moving the die until it is well-centered. Keeping light tension on the die via the press ram, secure the die lock ring.

USAMU Handloading Hump Day Seating Die Adjustment Stem TIR Concentricity Run-out

If one were using a micrometer-type seating die, the next step would be simple: run a charged case with bullet on top into the die and screw the seating stem down to obtain correct cartridge OAL.

However, with standard dies, an additional step can be helpful. When the die has a loosely-threaded seating stem, set the correct seating depth but don’t tighten the stem’s lock nut. Leave a loaded cartridge fully raised into the die to center the seating stem. Then, secure the stem’s lock nut. Next, load sample cartridges and check them to verify good concentricity.

One can also experiment with variations such as letting the seating stem float slightly in the die to self-center, while keeping correct OAL. The runout gauge will show any effects of changes upon concentricity. However, the first method has produced excellent, practical results as evidenced by the experiment cited previously. These results (TIR Study 2) will reproduced below for the reader’s convenience.

TIR Study 2: Standard vs. Match Seating Dies

50 rds of .308 Match Ammo loaded using carefully-adjusted standard dies, vs. 50 using expensive “Match” dies from the same maker.

Standard dies, TIR:
0.000” — 0.001” = 52%;
0.001”– 0.002” = 40%;
0.002”– 0.003” = 8%. None greater than 0.003”.

“Match” dies, TIR:
0.000”– 0.001” = 46%;
0.001” — 0.002” = 30%;
0.002” — 0.003” = 20%;
0.003” — 0.004” = 4%.

AccurateShooter Comment: This shows that, with careful adjustment, the cheaper, standard dies achieved results that were as good (or better) than the more expensive “Match” Dies.

These tips are intended to help shooters obtain the best results from inexpensive, standard loading dies. Especially when using cases previously fired in a concentric chamber, as was done above, top-quality match dies and brass can easily yield ammo with virtually *no* runout, given careful handloading.

Permalink Reloading, Tech Tip 3 Comments »
July 29th, 2015

SFC Brandon Green Wins National High Power Championship

Brandon Green NRA High Power Championship 2015

Congratulations to SFC Brandon Green on winning the 2015 NRA National High Power Championship. Green shot an impressive 2387-140X to earn his second High Power title, finishing ahead of past Champion Norman Houle (2380-126X) and USAMU team-mate SFC Shane Barnhart (2379-127X). Brandon told “It’s a great honor and privilege to shoot and compete with such great people here at camp Perry. We had a great match this year and I already look forward to seeing everyone next year.”

Over 260 shooters competed in this year’s High Power Championship events. CLICK HERE to view complete match results, with overall rankings, as well as category-specific results.

It was a well-deserved win for Green, who had to over-come the effects of a nasty spider bite on his right arm (see photo). Joe Caley observed: “Our man Brandon Green and his new-found Spiderman powers pulled off another great Championship. Years from now, no one will remember the 2015 Championship [scores], but they will remember Brandon Green’s Spider Bite!”

Brandon Green NRA High Power Championship 2015

SFC Green expressed gratitude to all those who assisted his efforts: “I just want to say thank you to all of my friends and family who support and help us do what we love to do. Thank you for all of the hard work, congratulations, and encouraging words. From the USAMU support team to the friends on the range and back home, I feel blessed to be surrounded by such wonderful people. THANK YOU!”

Here are the Top Ten Finishers, ranked by score for all Classifications:

1. SFC Brandon Green (HM) 2387-140X U.S. Army, Service Match Rifle
2. Norman Houle (HM) 2380-126X Civilian Match Rifle
3. SFC Shane Barnhart (HM) 2379-127X U.S. Army, Service Match Rifle
4. Rodrigo Rosa (HM) 2374-106X Civilian Match Rifle
5. MSG Robert Mango (HM) 2372-104X U.S. Army Reserve, Service Rifle (NRA Rule 3.1)
6. SGT Lee Bahten (HM) 2370-116X U.S. Army, Service Rifle (NRA Rule 3.1)
7. Joseph Hendricks (HM) 2369-82X Civilian Match Rifle
8. Ronald Zerr (HM) 2367-112X Civilian Match Rifle
9. CPT Samuel Freeman (HM) 2367-96X U.S Army Reserve, Service Rifle (NRA Rule 3.1)
10. Kenneth Lankford (HM) 2367-95X Civilian Match Rifle

CLICK HERE for Complete Results from NRA 2015 High Power National Championships.

2015 NRA High Power National Championships

2015 NRA High Power National Championships

Bernosky Forced to Withdraw Due to Medical Issues
Report by
This is the second championship for SFC Green, whose first win came two years ago in 2013 after a tie with legendary shooter Carl Bernosky at 2384-126X each. Although both possessed the same point total and X-Count, Green was ultimately awarded the championship after a rulebook-mandated comparison of Xs at each distance gave him the advantage.

Bernosky, a ten-time NRA High Power Rifle champion, withdrew from this year’s competition after the first day (while in sole possession of first place) due to medical complications.

“This win is kind of bittersweet because Carl wasn’t able to be out here. We are pretty good friends and we’re both super competitive people so I wanted to shoot against him,” Green said. “Carl is one of the best competitors I’ve ever seen in this sport, Norm too, and it’s nice to be able to shoot with these guys every year.”

Range photos from 2015 HP Nat’l Championships courtesy

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July 7th, 2015

USAMU Advice for Progressive Press Users USAMU progressive press reloading

Each Wednesday, the U.S. Army Marksmanship Unit (USAMU) publishes a reloading “how-to” article on the USAMU Facebook page. In this article, the USAMU’s reloading gurus address a question frequently asked by prospective handloaders: “Should I buy a single-stage press, or a progressive?” The USAMU says the best answer is Solomon-esque in both its wisdom and simplicity: “Get BOTH!” However, there is definitely more to the issue, as the USAMU explains below.

USAMU Reloading

Progressive Press Safety Considerations by USAMU Staff
Many are the beginning handloaders who have asked a friend about their “setting up” a progressive press for them. The idea is that the newbie could then just feed in components and crank out buckets of practice ammo without needing to really learn much about handloading. Tempting though this might be, that’s simply not how it works. Such an approach might be ok if there were never a malfunction with either press or operator, but that’s unrealistic. Our hypothetical newbie would then lack the knowledge to problem-solve most situations.


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June 28th, 2015

Excellent Video Covers Handgun Fundamentals

Pistol Fundamentals USAMU

If you shoot a pistol, you should watch this video. It covers the key fundamentals of handgun shooting: stance, arm position, grip, sight alignment, and trigger control. This excellent video features USAMU shooter SGT Shane Coley.

Arm/Elbow Position: You should not lock your elbows says SGT Coley: “Because my elbows are slightly bent, it allows the recoil to transfer into my shoulders, down my core, into my legs and to the ground, allowing me to maintain a flat-shooting gun … on multiple targets.”


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June 17th, 2015

Competition Tips from 3-Gun Wizard Daniel Horner

There’s no denying that 3-Gun competition is growing in popularity nationwide. Using a pistol, rifle and shotgun to shoot multiple targets at varying distances is exciting and challenging. Here are some pointers for performing better on the 3-Gun range by the USAMU’s SSG Daniel Horner, a two-time winner of Crimson Trace’s Midnight 3-Gun Invitational (M3GI) match.

Competing in Night-Time Stages
“I use the same gear all year long, so when it comes time for this match (the M3GI), I just adapt the guns, so they will work for the night time,” stated Daniel Horner. “I attach the Crimson Trace lasers and lights to the guns in whatever is the easiest way possible. Last year I just screwed a rail to my shotgun with wood screws. So, people can compete with pretty much whatever they have available and make it work.” Horner also recommends using a pair of head-mounted lamps. One can illuminate your firearms’ iron sights while the other headlamp is aimed at the targets.


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June 11th, 2015

Precision Handloading for Pistols — Tips from the USAMU

USAMU Service Pistol Handgun Tip Advice Reloading

This week, the U.S. Army Marksmanship Unit is pleased to host pistol teams from the various U.S. Armed Services in the 56th Annual Interservice Pistol Championship. Our Handloading Shop members have enjoyed discussing pistol accuracy and enjoying the camaraderie of competitive shooters from all over. In that spirit, this week’s topic will focus on handloading for best pistol accuracy, rather than our usual rifle-oriented information.

Optimize the Taper Crimp
One often-overlooked aspect of handloading highly-accurate pistol ammunition is the amount of crimp and its effect on accuracy. Different amounts of taper crimp are used with various handloads to obtain best accuracy. The amount is based on bullet weight, powder burn rate and charge, plus other factors. It is not unusual for our Shop to vary a load’s crimp in degrees of 0.001″ and re-test for finest accuracy.


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June 2nd, 2015

SFC Emil Praslick III Profiled in Shooting Sports USA

Emil Praslick III USAMU coach marksmanship team U.S. Army

In the just-released June 2015 issue of Shooting Sports USA, you’ll find an excellent profile of SFC Emil Praslick III, a legendary figure in American shooting. As a marksmanship instructor and coach for the USAMU, Praslick has been a mentor for many of America’s greatest marksmen. Praslick has also served as a wind coach for many civilian teams over the years, guiding them to victory in high-level championship events. SFC Praslick plans to retire later this year, when SFC Shane Barnhart will take over as coach of the USAMU Service Rifle Team.

In a wide-ranging Shooting Sports USA interview with writer John Parker, SFC Praslick offers many interesting insights. Here are some highlights (after the jump):


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May 24th, 2015

2015 Sniper’s Hide Cup in Colorado

Snipers Hide Cup 2015 T3 Ranch Colorado Tactical match Frank Galli
SGT Tyler Payne of the USAMU gets rounds downrange quickly. Check out the spent brass.

The Sniper’s Hide Cup, one of the premier events on the tactical match circuit, has been underway this weekend in Colorado at the 6000-acre T3 Ranch. This year’s match got off to great start despite the bad weather. The 236 shooters completed all eight stages on time, a significant accomplishment in a field-type match of this scale. Here’s a video report from Day 2 of the event:

Day Two Report (CLICK for VIDEO):


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March 22nd, 2015

WVU Leads Intercollegiate Rifle Championships at Fort Benning

Collegiate Smallbore Air Rifle Championship fort Benning West Virginia WVU

Just a week after securing a third straight NCAA Rifle Championship, the West Virginia University (WVU) Rifle team has notched another impressive team victory. At the 2015 NRA Intercollegiate Rifle Club Championships, the Mountaineers just won the Smallbore Rifle competition, compiling an aggregate 2116 team score (out of a possible 2400). Now WVU hopes to win the combined Smallbore and Air Rifle events to secure the overall Championship.

Collegiate Smallbore Air Rifle Championship fort Benning West Virginia WVU

After clenching the Smallbore Championship, the Mountaineers carry a 17-point lead into today’s Air Rifle competition at the USAMU’s facility at Fort Benning, Georgia. In second, with their eyes still on the Championship trophy, is Clemson University at 2099. Penn State rounds out the top three with 2084.

Collegiate Smallbore Air Rifle Championship fort Benning West Virginia WVU

Collegiate Smallbore Air Rifle Championship fort Benning West Virginia WVU

Collegiate Smallbore Air Rifle Championship fort Benning West Virginia WVU

Photos courtesy NRA Competitive Shooting

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March 13th, 2015

Soldiers and Marines Test Talladega Targets

CMP USAMU USMC Marksmanship Talladega Park CMP

It’s rare when Soldiers and Marines agree on anything. But in this case, both Army shooters and Marine marksmen endorsed the electronic target system at Talladega. Members of the U.S. Army Marksmanship Unit (USAMU) and the U.S. Marine Corps Service Rifle Team traveled to Alabama to test the Kongsberg electronic target system at the CMP’s new Talladega Marksmanship Park. Despite wet weather, the system worked well, allowing shooters to see their shot locations (and scores) instantly. At each shooting station a monitor displays the shooter’s target. Shots are plotted as contrasting white dots with shot values automatically calculated. Watch the video below to hear what the Soldiers and Marines thought of this high-tech system.

Video Shows Electronic Target System in Action

SGT Joseph Hall of the USAMU said the target system was “Super-smooth, super-quick. So far everything has been fantastic. We are saving a tremendous amount of time. There are no pit changes because everything is electronic. We are able to concentrate more on the shooting aspect… and less on … taking care of the targets and pit changes and relay changes. The relay changes here are just as simple as moving your equipment and the next guy getting on the line. The amount of time you’re saving is just incredible.”

CMP USAMU USMC Marksmanship Talladega Park CMP

CMP USAMU USMC Marksmanship Talladega Park CMP

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February 27th, 2015

Primer Seating Depth Uniformity and Accuracy

Each Wednesday, the U.S. Army Marksmanship Unit publishes a reloading “how-to” article on the USAMU Facebook page. Yesterday’s post covered primer seating depth. This article offers many useful tips — including a clever way to measure primer seating depth with ordinary jaw-type calipers. Visit the USAMU Facebook page next Wednesday for the next installment.

USAMU reloading tip

Primer Seating Depth — Why Uniformity is Important
The first concern is for safety: for that reason, primers should be seated below flush with the case head. One primary cause of “slam fires” (which includes catastrophic failures from firing out of battery) is “high,” or protruding primers. These stand above the case head, are readily felt with simple finger-tip inspection, and may fire when slammed by the bolt face and/or a floating firing pin in feeding.

Here at the USAMU, we ensure our rifle primers generally run -0.003″ to -0.005″ below the case head. Maximum primer depth is -0.006″ and minimum is -0.002″. Upon inspection, any cases with high primers will be corrected before loading. Aside from improving ballistic uniformity, ensuring the primers have proper compression upon seating also helps reduce possible misfires. These can be caused by the firing pin’s expending part of its energy either seating the primer or having to deform the primer cup enough to reach the anvil.

SMART TIP: How to Measure Primer Seating Depth with a Set of Calipers
A zeroed, precision set of standard calipers will also measure primer seating depth. (You don’t really need a custom tool.) Merely close the jaws and place the calipers’ narrow end squarely across the center of the case head/primer pocket. Keeping the narrow end in full contact with the case head, gently open the jaws, and the center bar will extend until it reaches the primer face. Voilà! Primer depth is read on the dial. Taking a few measurements to ensure accuracy and repeatability is recommended until one is familiar with this technique.

Brass and Primer Defects Can Cause Seating-Depth Variances
Factors affecting variance of primer seating depth include brass maker and lot number — all primer pockets are not created equal! Another factor is the primer manufacturer and individual primer lot. We’ve encountered occasional primer lots by top-quality makers that included some primers with slight defects affecting seating. While finely accurate, these primers were out-of-round or had small slivers of cup material protruding which affected primer feeding or seating depth.

Has one’s brass been fired previously? If so, how many times and the pressures involved also affect future primer seating. Obviously, this is another factor in favor of segregating one’s high-accuracy brass by maker, lot number, and number of times fired, if possible.

Measuring Primer Seating Depth with Purpose-Built Gauge
The next question, “How do we measure primer depth?” happily can be answered using tools already owned by most handloaders. [See tip above on how to measure depth with calipers.] At the USAMU, we have the luxury of purpose-built gauges made by the talented machinists of the Custom Firearms Shop. One places the primed case into the gauge, and the dial indicator reads the depth quickly and easily. The indicator is calibrated using a squarely-machined plug that simulates a case head with a perfectly flush-seated primer, easily giving meaningful “minus” or “plus” readings. The gauge is usable with a variety of case head sizes.

Primer Seating with Progressive Presses
Methods of primer seating include hand-seating using either hand held or bench-mounted tools, vs. progressive-press seating. Progressive presses may either seat by “feel,” subjective to each operator, or by using a mechanical “stop” that positively locates primers nearly identically every time. Testing here has shown that we get more uniform seating with the latter type progressive press, than we do with a high-quality bench-mounted tool lacking a positive stop.

Primer stop depth adjustments on our main progressive presses involve turning a punch screw in and out. While the screw is not calibrated, fine “tick” marks added to the top of the press help users gauge/repeat settings by “eye” efficiently with practice. Then, once a sample of primed cases is run to confirm the range and accuracy of depths, the identifying lot number and maker is noted on the press for reference. When it’s necessary to switch brass/primer lots, changes are easy to make and settings are easily repeated when it’s time to switch back.

Permalink Reloading, Tech Tip 2 Comments »
February 4th, 2015

How to Remove Primer Pocket Crimps from Fired Brass

Each Wednesday, the U.S. Army Marksmanship Unit publishes a reloading “how-to” article on the USAMU Facebook page. Today’s “Handloading Hump Day” post covers removal of military primer pocket crimps. If you ever use surplus military brass, you really should this article. It contains vital information “learned the hard way”. The writer has tried many different options for removing/swaging out crimps. He weighs the pros and cons of various methods and provides some advice that will save you time and headaches. This article is the second in a 3-part series. Last week the USAMU discussed cleaning of surplus brass. Visit the USAMU Facebook page next Wednesday for the next installment.

A common question, and important issue with US GI surplus 5.56 brass is “what to do with the primer crimp?” Our Handloading Shop does not prime/re-prime GI 5.56 brass, as we receive it in virgin state (primed) and don’t reload it. However, our staff has extensive private experience handloading GI brass in our own competitive shooting careers, and have several tips to offer.

Once the brass is full-length sized and decapped, the staked-in ring of displaced metal from the primer crimp remains, and hinders re-priming. Some swaging tools exist to swage out this ring, allowing free access to the primer pocket. Some are stand-alone products, and some are reloading-press mounted. Early in this writer’s High Power career, he used the common press-mounted kit several times, with less than stellar results.

Setting Up Swaging Tools
Surplus brass tends to come from mixed lots, and primer crimp varies from very mild to strong. Also, primer pocket dimensions vary. So, setting up this “one size fits most” tool involves trying to find a happy medium for a selection of different types of brass in your particular lot. Some are over-swaged, some under-swaged, and some are “Just Right.” Overall, it was a time-consuming and sub-optimal process, in this writer’s experience.

Cutting Out the Crimp Ring with a Chamfer Tool
[After trying swaging tools] this writer evolved to using the ubiquitous Wilson/RCBS/Other brands chamfer and deburring tool to cut out only the displaced crimp ring at the top of the primer pocket. One caution: DON’T OVER-DO IT! Just a little practice will let the handloader develop a “feel” for the right degree of chamfer that permits easy re-priming without removing so much metal that primer edges start to flow under pressure. For this writer, it was three half-turns of the tool in the primer pocket, with medium pressure.

Here, as with all bulk reloading operations, mechanization is our friend. A popular reloading supply house has developed an inexpensive adaptor that houses the chamfer/deburr tool (retained by an allen screw) and allows mounting in a hand drill or drill press. This speeds the operation significantly, as does use of one of the popular Case Preparation Stations that feature multiple powered operations. (Say good-bye to carpal tunnel syndrome and arthritis!)

military crimp removal USAMU

One advantage of chamfering the primer pockets lightly to remove remnants of primer crimp, vs. swaging, is that primer pockets are not loosened in this process. US GI (usually LC) NATO 5.56 brass has a great reputation for longevity due to the superior hardness of the case head vs. some softer brands of commercial brass. This means the brass will stand up well to multiple full-pressure loads without loosening primer pockets, and the chamfering method helps support this benefit.

Powered Case Prep Centers — What to Look For
A word of advice (often learned the hard way) — think carefully before jumping on the “latest/greatest” case prep center. One with a proven, long-time track record of durability and excellent customer support has a lot going for it, vs. the flashy “new kid on the block.” Analyze the functions each case prep center can support simultaneously — i.e., can it chamfer, deburr and clean primer pockets all at the same time, without having to re-configure?

Do the tool-heads that come with it look truly functional and durable? If not, can they be easily replaced with proven or more-needed versions, such as a VLD chamfer tool, or a solid/textured primer pocket cleaner rather than a less-durable wire-brush type?

military crimp removal USAMUTips for Priming with Progressive Presses
When re-priming, a couple of factors are worth noting. When re-priming using either single-stage presses, hand tools, or bench-mounted tools (such as the RCBS bench-mounted priming tool), precise alignment of the primer pocket entrance with the primer is easily achieved, and priming goes very smoothly. When using certain progressive presses, due to the tolerances involved in shell-heads, etc., one may occasionally encounter a primer that isn’t quite perfectly aligned with the primer pocket.

If resistance is felt when attempting to re-prime, DO NOT attempt to force the primer in — doing so can be dangerous! Rather, just exert SLIGHT upward pressure to keep the primer in contact with the case-head, and with the support hand, move the case back/forth a trifle. The primer will drop into alignment with the primer pocket, and then prime as usual. After priming, check each seated primer by feel. Ensure it is below flush with the case head (cleaning primer pockets helps here), and that there are no snags, burrs or deformed primers.

More Info on Primer Pocket Swaging
For more information about removing military crimps in primer pockets, we recommend you read Get the Crimp Out on the Squibloads Gun Thoughts Blog. This is a detailed, well-illustrated article that shows how to use various primer pocket reamers/cutters. It also has a very extensive discussion of swaging using CH4D, RCBS, and Dillon tools. The Squibloads author had much better luck with swaging tools than did the USAMU’s writer — so if you are considering swaging, definitely read the Squibloads article.

The illustration of primer pocket types is from the Squibloads Blog Article, Get the Crimp Out.

Permalink Bullets, Brass, Ammo, Reloading 1 Comment »
January 29th, 2015

USAMU Reloading Tip — Prepping GI 5.56 Brass for Match Use

Each Wednesday, the U.S. Army Marksmanship Unit publishes a reloading “how-to” article on the USAMU Facebook page. Yesterday’s “Handloading Hump Day” post covered preparation of once-fired 5.56x45mm brass. This article, the first in a 3-part series, has many useful tips. If you shoot a rifle chambered in .223 Rem or 5.56x45mm, this article is worth reading. And visit the USAMU Facebook page next Wednesday for the next installment.

This week, Handloading Hump-Day will answer a special request from several competitive shooters in Alaska. They asked about procedures for morphing once-fired GI 5.56mm brass into accurate match brass for NRA High Power Rifle use. The USAMU has used virgin Lake City (LC) 5.56 brass to win National Championships and set National Records for many years. In this 3-part series, we’ll share techniques proven to wring match-winning accuracy from combat-grade brass.

Preparing Once-Fired GI 5.56 Brass for Reloading (Part 1 of 3)
Assuming our readers will be getting brass once-fired as received from surplus dealers, the following steps can help process the low-cost raw material into reliably accurate components.

1. Clean the Brass
First, clean the brass of any dirt/mud/debris, if applicable. Depending on the brass’s condition, washing it in a soap solution followed by a thorough rinsing may help. [This step also extends the life of the tumbling media.] Approaches range from low-tech, using gallon jugs 1/2 full of water/dish soap plus brass and shaking vigorously, to more high-tech, expensive and time-consuming methods.

2. Wet-Tumbling Options (Be Sure to Dry the Brass)
When applying the final cleaning/polish, some use tumblers with liquid cleaning media and stainless steel pins for a brilliant shine inside and out, while others take the traditional vibratory tumbler/ground media approach. Degree of case shine is purely personal preference, but the key issue is simple cleanliness to avoid scratching ones’ dies.

If a liquid cleaner is used, be SURE to dry the cases thoroughly to preclude corrosion inside. One method is to dump the wet brass into an old pillow case, then tilt it left/right so the cases re-orient themselves while shifting from corner to corner. Several repetitions, pausing at each corner until water stops draining, will remove most water. They can then be left to air-dry on a towel, or can be dried in a warm (150° F-200° F max) oven for a few minutes to speed evaporation.

Shown below are Lake City cases after cleaning with Stainless Media (STM). Note: STM Case cleaning was done by a third party, not the USAMU, which does not endorse any particular cleaning method.

3. Inspect Every Case
Once dry, inspect each case for significant deformation (i.e., someone stepped on it), damaged mouths/necks and case head/rim damage. Some rifles’ ejectors actually dig small chunks of brass out of the case head — obviously, not ideal for precision shooting. Similarly, some extractors can bend the case rims so badly that distortion is visible when spinning them in one’s fingers. These can be used for plinking, but our match brass should have straight, undamaged rims.

Dented case mouths are common, and these can easily be rounded using a conical, tapered tool, [such as a .223 expander mandrel. A dummy 7.62 or .30-06 cartridge with a FMJ spitzer can also work.] If most of your brass is of one headstamp, this is a good time to cull out any odd cases.

4. Check the Primers Before Decapping
Your clean, dry and inspected brass is now ready for full-length sizing, decapping and re-priming. Historically, primer crimps on GI brass have caused some head-scratching (and vile language) among handloaders. Our next installment will detail efficient, easy and practical methods to remove primer crimp, plus other useful handloading tips. Until next week, Good Shooting!

NOTE: The USAMU Handloading (HL) Shop does not RE-load fired 5.56 brass. We use virgin LC brass with our chosen primer already staked in place. However, our staff has extensive personal experience reloading GI brass for competition, which will supplement the Shop’s customary steps. In handloading, as in life, there are many ways to accomplish any given task. Our suggestions are note presented as the “only way,” by any means. Time for loading/practicing is always at a premium. Readers who have more efficient, alternative methods that maintain top accuracy are invited to share them here.

Permalink Reloading 3 Comments »
December 17th, 2014

Man vs. Machine — Comparative Rifle Accuracy at 600 Yards

Man versus machine USAMU AR15 M16 High Power National Record

Can a human being, hand-holding a rifle, out-shoot a mechanical test rest? Who would win in this battle between man and machine? You might just be surprised. At 600 yards, with an AR-platform rifle, the results can be remarkably close, based on targets provided by the USAMU. When clamped in a test rig, a USAMU M16A2 produced a 200-18X group with handloads. The USAMU says this was “one of our better 20-shot groups at 600 yards, testing ammo from a machine rest”. Can a human do better?

Man versus machine USAMU AR15 M16 High Power National Record

Remarkably, a human soldier came very close to matching the group shot from the machine rest. The photo below shows a 20-shot group shot by a USAMU marksman with sling and iron sights, using USAMU-loaded ammunition. The score, 200-16X, was nearly the same. As you can see, the USAMU rifleman didn’t give up much to the machine rest, even at 600 yards!

Man versus machine USAMU AR15 M16 High Power National Record

In fairness, this was no ordinary human performance. The 200-16X score was a new National Record set in December, 1994. This was fired by PFC Coleman in an Interservice Match at Okeechobee, Florida. Nice shootin’ soldier!

Permalink News, Shooting Skills 7 Comments »
November 15th, 2014

Hunting Tip: How to Plot Your Cold Bore Point of Impact

Commonly, hunters won’t have the ability to fire one or two fouling shots before heading out on a hunt. Therefore it’s important that a hunter understands how his rifle shoots with a “cold bore shot”. Both the point of impact (and possibly velocity), may be different with a cold bore than with a barrel that has been warmed and fouled with a series of shots. In this video from the U.S. Army Marksmanship Unit (USAMU), you’ll learn how to determine your cold bore point of impact (POI) for a rifle that just been cleaned, as well as the cold bore POI with a barrel that has already been “fouled in”.

SGT Joe Hein of the USAMU shows how to plot cold bore POI with both a clean bore and a fouled bore. Note that the “cold bore” shot from a fouled barrel was closer to the follow-up shots than the cold bore shot from a clean barrel. This is typical of many factory barrels. SGT Hein provides a simple way to understand your rifle’s cold bore performance. Hein’s advice can keep you from missing that long range shot at that big buck on opening day. A little time spent on the range before that critical first shot will help ensure you have meat in the freezer this season.

Permalink - Videos, Hunting/Varminting 5 Comments »
September 15th, 2014

Horner Wins Trijicon World Shooting Championship

TWSC trijicon world shooting championship

Daniel Horner of the USAMU has been crowned the World Shooting Champion, and he has a $50,000 check to prove it. In the first running of the Trijicon World Shooting Championship (TWSC), 159 of the world’s top shooters competed in a grueling 4-day, multi-discipline event. To do well at the TWSC you had to be an expert with rifle, shotgun, and pistol — and you couldn’t have any real weaknesses. You needed mastery of speed pistol, trap shooting, long-range rifle shooting, cowboy action disciplines, “run and gun”, and defensive action scenarios.

SSG Daniel Horner (File photo — not from TWSC)
TWSC trijicon world shooting championship

Horner topped the field with 966.856 points. In second place was Bianchi Cup Ace Bruce Piatt with 924.895. The legendary Jerry Miculek took third with 870.153. Jerry’s performance gave hope for us old guys. There must also be something about Miculek DNA — Jerry’s daughter Lena was the top female competitor, finishing 28th overall. We also want to acknowledge young Brian Nelson who, competing as a Junior, finished fourth overall, a great accomplishment. Other than Nelson, most of the top finishers are professional 3-Gun competitors. These folks know how to put rounds on target quickly and transition smoothly from one firearm to the next.

For four days, the shooters competed in twelve equally-weighted disciplines from various shooting sports. The match combines pistol shooting (action and bullseye), rifle shooting (action, smallbore, high-power, and F-Class), and Shotgun (Sporting Clays/trap/tactical). All firearms and ammunition were provided for each event.

Horner won the big prize through consistency. Out of the 12 shooting events, he finished in the top 10 in all but two. Writing in the Shooting Wire, Jim Shepherd reports: “Horner took outright stage wins in the Wobble Trap Doubles (100%) and NRA Action Rifle (100%) and used them to overcome his two worst scores, a 28th-place finish in F-Class rifle and a 13th-place in .22 rifle. For his achievement, Horner wins the $50,000 prize, and the dubious honor of now knowing that every competition shooter in the world has him solidly in their sights now, not just the 3-gun shooters he regularly tests … and bests.”

TWSC world shooting championship trijicon west Virginia results

TWSC Complete Final Results | TWSC Stage-by-Stage Results

Big Cash Awards and Unrivaled Prize Table
Competitors came to the Peacemaker National Training Center in Glengary, WV for a chance to be crowned the “World Shooting Champion” and receive a $50,000 first place cash prize. This match carried “multi-gun” competition to a whole new level, with BIG MONEY at stake:. There were cash payouts for most stages and over $150,000 worth of hardware on the prize table.

First Place Overall: $50,000
Lady Champion: $5,000
Pistol Segment Winner: $5,000
Rifle Segment Winner: $5,000
Shotgun Segment Winner: $5,000

Second Place Overall: $3,000
Third Place Overall: $2,000
Fourth Place Overall: $1,000
Stage Winner $2,000
Side Match Winner: $1,000

Meanwhile, in Spain — the ISSF World Shooting Championships
The next TWSC will be held October 15-17, 2015. This inaugural event went well, and it will surely grow in prestige as time passes. However, we do question the notion that this was truly a “World Championship”. The TWSC took place in West Virginia at the same time that the ISSF World Championships were being held in Granada, Spain. That means that virtually none of the world’s top shotgun aces or top prone/3P rifle shooters attended the TWSC — they were in Spain instead. Over 2000 shooters are competing at the 2014 ISSF World Championships, including hundreds of Olympians. The TWSC had less than 200 competitors, and few Olympians. TWSC was, then, more realistically, a North American Multi-Gun Championship. Let’s hope that, in the years to come, the TWSC will attract more foreign-born competitors. That way it can properly be called a “World Shooting Championship”.

Permalink Competition, News 9 Comments »
July 28th, 2014

High Power National Championship — The Guns of Camp Perry

We are already half-way through the NRA High Power National Championship and SSG Shane Barnhart of the USAMU remains atop the leaderboard, with a score of 1193-64X out of a possible 1200 points. Barnhart shot a 595-28X during Sunday’s Navy Cup, Coast Guard Trophy, and Army Cup matches. Barnhart currently holds a three-point lead over second place SSG Brandon Green (1190-58X), the defending High Power National Champion. Like Barnhart, Green shoots for the USAMU. Kenneth Lankford leads the “any sight” (scopes allowed) division with 1191-54X.

High Power Hardware: The Guns of Perry

We thought our readers would like to see some of the ultra-accurate rifles campaigned by High Power competitors at Camp Perry. Both bolt-action and self-loading rifles are popular. Among bolt guns, Tubb 2000s and Eliseo tubeguns are popular. Semi-auto AR platform “Space Guns” offer some advantages (particularly during rapid-fire and for standing position), and are favored by many of the top marksmen. Many Camp Perry High Power competitors are also shooting less exotic AR service rifles.

Here is your current leader, SSG Shane Barnhart, with an AR Space Gun. Note the side charging handle and tall iron sight set-up.
Camp Perry AR15 Tubegun High Power Space Gun Tubb 2000 Rifle Standing

Tubb 2000 with a shortened handguard, and custom hand support bracket forward of mag well.
Camp Perry AR15 Tubegun High Power Space Gun Tubb 2000 Rifle Standing

The modern AR Space Gun, scoped version. Note the side charging handle, and absence of forward assist. A block fitted under the handguard helps with the standing position. The scope is mounted on a “piggy-back” rail that extends forward of upper receiver’s built-in rail.
Camp Perry AR15 Tubegun High Power Space Gun Tubb 2000 Rifle Standing

Tubb 2000 rifle, left-hand version. Note how the butt-plate is adjusted for cant, angle, and drop.
Camp Perry AR15 Tubegun High Power Space Gun Tubb 2000 Rifle Standing

Look carefully — it appears that a separate fore-arm section is duct-taped to the red free-floated handguard. Perhaps this AR owner experienced some wiggle, and that’s why he seems puzzled?
Camp Perry AR15 Tubegun High Power Space Gun Tubb 2000 Rifle Standing

A countdown timer is attached directly to this shooter’s Tubb 2000 rifle.
Camp Perry AR15 Tubegun High Power Space Gun Tubb 2000 Rifle Standing

This Service Rifle competitor shows how to get some “R & R” between relays.
Camp Perry AR15 Tubegun High Power Space Gun Tubb 2000 Rifle Standing

All Photos courtesy NRA General Operations.

Permalink Competition, Gear Review 4 Comments »