In an article for the CMP Online Magazine, SSG Tobie Tomlinson of the USAMU Service Rifle Team explains the various sight alignments employed by iron sights shooters. Tobie writes: “There are a myriad of sight picture options that shooters have used to great effect over the years. The sight picture that allows you to consistently shoot the smallest group, with a minimal shift in zeros, is the correct one. Remember, for any shooter to be successful, consistent sight picture must be complemented by front sight focus and sight alignment.” CLICK HERE to read FULL ARTICLE
Center Hold
The front sight is placed directly in the center of the target. A center hold is great in different light conditions. On a bright day the target appears small. On a dark day the target appears large. In [any] light conditions the center of the target is always in the center. A shooter who has problems with elevation shots in various light conditions may benefit from a center hold.
6 O’Clock Hold
With the 6 O’Clock hold the front sight is placed at the bottom of the aiming black. For many shooters, this hold allows precision placement of the front sight. The ability to accurately call your shots will come with time and experience. Light changes, which alter the appearance of the target, may affect shooters who utilize the 6 O’Clock hold.
Sub 6 Hold
The sub 6 is just like the 6 O’Clock hold, only there is a small line of white between the front sight and the aiming black. Many shooters have a problem determining the exact 6 O’Clock position with their front sight, but by using a sub 6 or line of white they may be able to better estimate their hold.
Frame Hold
With the frame hold, just like with the other holds, the front sight is in the center of the rear sight. The front sight can then be placed at the 6 or 12 O’Clock position on the frame when there is no visible aiming point. This hold is typically reserved for foul weather and poor light conditions. By placing the front sight at the top or bottom of the frame, a shooter may hold better when there is little target to see. It can be difficult to hold a tight group this way, but it may add more hits in bad conditions. This technique is normally applied when shooting longer ranges such 600 or 1000 yards.
How accurate can a .45 ACP pistol be, in the hands of an expert marksman? Take a look at that target. This was shot off-hand (no rest) with ONE HAND at FIFTY (50) Yards. That’s TEN shots at 50 yards all inside the 3.36″ 10-Ring with eight shots in the 1.695″ diameter X-Ring.* We bet most folks would have trouble matching that with a scoped rifle shot standing.
Amazing Handgun Accuracy at 50 yards
This remarkable feat of precision pistol shooting — a 100-8X group at 50 yards — was accomplished this week by PFC Jason Gregoire, a talented young USAMU pistol marksman. And yes, that was done shooting one-handed!
On its Facebook Page the USAMU posted: “Check out this impressive target by PFC Jason Gregoire of the USAMU Service Pistol Team! This was shot one-handed, with a .45 pistol, and at 50 yards during the Centerfire Match in Columbus, Ohio [on 7/1/2020]. The score was 100-8X. Now that is some marksmanship!”.
How to Improve Your Pistol Skills
Want to improve your bullseye pistol shooting skills? Then watch a series of videos hosted by Brian “Gunny” Zins, a 12-time National Pistol champion, and retired U.S.M.C. Gunnery Sergeant. Here is one the Fundamentals of Bullseye Pistol Shooting videos that Zins produced with the NRA and Shooting Sports USA.
12-time National Pistol Champion Brian Zins Explains Aiming and Trigger Control.
Pistol Competitors (.45 ACP) at 2019 NTT Match at Camp Perry, Ohio.
* This 10-shot group was shot on the NRA B-6 50-yard Pistol Target. Here are the ring dimensions as stated in the NRA Precision Pistol Rules (p. 15):
Shooting USA will broadcast a great episode today, January 15, 2020. There are three segments worth watching. First the TV show spotlights the popular GAP Grind, a Pro-Am PRS event at the K&M Precision complex in Tennessee. Then this episode covers the NRA World Shooting Championship (WSC) in Virginia. This unique Pro-Am event challenges shooters with a dozen stages, employing a wide variety of pistols, rifles, and shotguns supplied by the manufacturers. The WSC offers huge rewards — over $250,000 in cash and prizes! Finally, there is a historical feature on the Spencer Rifle this week.
SHOW TIMES: This Shooting USA Episode airs July 1, 2020 (Wednesday) at 9:00 PM Eastern and Pacific; 8:00 PM Central.
PART ONE– 2019 GAP Grind Feature on Shooting USA
Lots of Action, with 20+ Stages
The GAP Grind is a challenging, “high tempo” match with minimal down-time between stages. Over the course of 20+ stages, competitors will fire 200+ shots at a variety of steel, paper, moving, and reactive targets out to 1,200 yards. Targets vary in size/difficulty based on the shooter’s position, distance, and time allotted. Most stages include “stressors” — i.e. time limits or required movement(s).
The GAP Grind is held at the impressive K&M Shooting Complex:
The GAP Grind attracts over 300 competitors — half experienced shooters and the other half newcomers to the sport. The key to growing the shooting sports is attracting new shooters. The best way to bring in “new blood” seems to be the Pro-Am type format. At the GAP Grind, experienced shooters share their knowledge and guide the new shooters through the competition.
Josh Temnnen Facebook photo.
GAP Grind Hardware
You’ll find the latest and greatest PRS hardware at the GAP Grind. Notable in 2019 was the fact that many top competitors “stepped down” from the 6.5/6mm Creedmoor to the smaller, more efficient 6mm Dasher, 6BRA and other 6mm cartridges. The Dasher offers excellent accuracy with less recoil than the 6.5 Creedmoor. Also, many top shooters are now running Kahles optics. Photo by Shelley Giddings.
PART TWO — NRA World Shooting Championship
In 2019, its sixth consecutive year, the NRA World Shooting Championship (WSC) returned to the Peacemaker National Training Center in Glengary, West Virginia. One of the nation’s biggest Pro-Am events, the WSC attracted many of the USA’s top professional shooters, along with talented amateurs. [NOTE: This year’s 2020 WSC has been cancelled due to COVID-19.]
This unique 3-day multi-gun match, held Sept. 18-21, 2019 tested competitors’ skills across twelve challenging stages involving nearly every major shooting discipline for rifles, shotguns, and pistols. Stages included fan favorites like 3-Gun, High-Power Silhouette, Cowboy Action, and more. For more information on the match, check out wsc.nra.org or email NRAhighpower@nrahq.org.
Way back in 2008 we shot rimfire tactical events in California. These 22 LR Tactical Precision Matches were fun, with affordable rifles and low-cost ammo. And since you don’t have to spend long hours loading ammo, rimfire tactical matches are also great for people with limited free time. You experience the fun of shooting tactical comps with much lower cost and WAY less prep time.
Over the past few seasons, NRL22 competitions have become popular nationwide. Now the leaders of the Precision Rifle Series (PRS) are planning to join the rimfire tactical game. Earlier this month, PRS organizers announced that the PRS will launch a new PRS Rimfire Series for 2020-2021:
The 2020-2021 PRS Rimfire Series is Launching Soon!
The PRS has been inundated with requests to put the PRS engine, national infrastructure, and outstanding partnerships behind the launch of a brand new PRS Rimfire Series for the 2020 and 2021 season. Over the last few months match directors, regional directors, our shooters, and PRS industry partners have communicated loud and clear that you want a Rimfire Series done the PRS way — and done right.
The Ruger Precision Rimfire should be a popular Factory Class option for PRS Rimfire
Rimfire tactical shooting offers outstanding “bang for the buck” compared to centerfire PRS. Rifles cost less, and .22 LR ammo costs a fraction of centerfire rounds. You don’t have to spend hours hand-loading your ammo. Travel time is reduced because you only need a range with targets out to 200 yards or so.
John Parker, Editor of Shooting Sports USA, explains the appeal of a rimfire PRS series: “PRS … has evolved into a top-tier shooting league, complete with a slick website and leaderboard rankings with data gathered from regional matches held across the country. The group plans to take the same approach with the proposed rimfire series[.] By throwing its hat into precision rimfire competition, PRS joins established .22 LR long-range games like the Lapua Practical Rimfire Challenge and NRL22[.]”
With ergonomics identical to a full-size centerfire fire, the .22 LR Bergara B-14 could become a popular choice for the future PRS Rimfire series. Photo by UltimateReloader.com.
PRS Seeks Input from Match Directors and Competitors
The PRS leadership is excited about its new national rimfire series: “Match Directors, shooters, and our partners appreciate that nothing that comes close to the PRS national level organization, leadership, experience and unrivaled website capabilities. Our series score tracking capabilities from the individual club level to the national level are simply unmatched.
We know that the rimfire community is primarily at your local club level and we have ensured that clubs will be able to provide their shooters with a PRS series that is easy to be a part of and provides loads of PRS benefits. Every PRS Rimfire club will have [its] own club page on our website that automatically calculates and tracks internal club rimfire series scores using the same simple upload system you have all come to love. Scores from each Rimfire Club will populate the corresponding Regional PRS Rimfire Series, modeled after the booming PRS Regional Series. Rimfire shooters will compete for standings at their local club level and also within their region… all rimfire shooters will receive a PRS Rimfire profile that tracks all of their scores, highlights their equipment, and celebrates their achievements.
Over the next few weeks, we will be gathering more of your input. We are forming a PRS Rimfire Committee composed of shooters, industry partners, and match directors. If you are a shooter, sponsor, or MD and would like to be a part of this conversation, email info@precisionrifleseries.com.”
PRS Rimfire Preview — .22 LR Long Range Precision Match in Minnesota
Want a preview of PRS Rimfire competition? In this video, Dave Timm of GunsandTactics.com shoots a Vudoo V-22 bolt gun in the Minnesota .22 LR Long Range Precision Rimfire Match at the Rush Lake Range. This PRS-style match had targets out to 300 yards during the main match, followed by a long range challenge out to 465 yards. Dave’s Vudoo Gunworks V-22 rifle features a Grayboe Ridgeback stock and Trijicon Accupower 4.5-30x56mm FFP scope. Dave was shooting Lapua Center-X .22 LR ammunition.
Are you looking to get started in PRS and NRL practical precision rifle competition? Or perhaps you’d like to advance your skill set so you can place higher in big matches (and get your hands on some of those prize table items)? Of course there is no substitute for trigger time in the field, but there ARE some great print resources. These four books can help you select the right equipment, improve your shooting skills, make better wind calls, increase your fitness level, and develop a more efficient between-match training program.
1. IMPACT! — Training and Preparing for Precision Rifle Matches
Rodney Maze, $19.99 Paperback, $4.99 Kindle
Impact!, by PRS competitor Rodney Maze, is an entry/intermediate level guide to preparing yourself and your equipment to compete in precision rifle type matches. It will also benefit anyone looking to learn about practical-style long range and precision shooting. We recommend you check it out for yourself — there are 20 Pages of free sample content on Amazon. Topics covered include:
— Rifle, optic, and equipment selection
— Setting up your rifle, bags, tripods for PRS/NRL matches
— Understanding ballistics and how to record and use ballistic data
— Techniques for using holdovers for multi-target stages
— Gun skills, rapid fire techniques, clearing malfunctions
— Shooting off of barricades, and specialty stages
— Effects of wind and how to improve your wind calls
— Tips for live fire and dry fire practice
— Preparing yourself and your equipment for a match
— Mental strategies and techniques
Impact! is illustrated with plenty of photographs. Topics are divided logically, and concepts are explained in clear language. Also included is an extensive glossary of terms used in precision shooting and a list of additional resources you can use to further pursue your precision shooting knowledge. This book also includes a handy Appendix with formatted pages for recording data about your rifle, scope, and ammunition. There is also a Wind table for recording your rifle “dope” and wind hold-offs. Lastly, Impact! has a useful table of unit conversions.
2. Practical Shooter’s Guide
Marcus Blanchard, $19.99 Paperback, $9.99 Kindle
Thinking of getting started in the Practical/Tactical shooting game? Looking for ways to be more stable when shooting from unconventional positions? Then you may want to read Marcus Blanchard’s Practical Shooter’s Guide (A How-To Approach for Unconventional Firing Positions and Training). Unlike almost every “how to shoot” book on the market, Blanchard’s work focuses on the shooting skills and positions you need to succeed in PRS matches and similar tactical competitions. Blanchard provides clear advice on shooting from barricades, from roof-tops, from steep angles. Blanchard says you need to train for these types of challenges: “I believe the largest factor in the improvement of the average shooter isn’t necessarily the gear; it’s the way the shooter approaches obstacles and how they properly train for them.”
3. Long Range Shooting Handbook
Ryan Cleckner, $19.85 Paperback, $9.99 Kindle
Ryan Cleckner’s Long Range Shooting Handbook is the best-selling modern book on practical rifle skills. A former U.S. Army sniper instructor, Cleckner is knowledgeable, and his text is well-organized and chock full of good information. You can view Sample Chapters on Amazon.com.
Ryan Cleckner’s highly-regarded Long Range Shooting Handbook is designed as an intro to important fundamental concepts such as MOA vs. Mils, External Ballistics, and Environmental Effects. Included are personal tips and advice based on Cleckner’s years of experience as a sniper instructor and special operations sniper.
The Long Range Shooting Handbook is divided into three main categories: What It Is/How It Works, Fundamentals, and How to Use It. “What It Is/How It Works” covers equipment, terminology, and basic principles. “Fundamentals” covers the theory of long range shooting. “How to Use It” gives practical advice on implementing what you’ve learned, so you can progress as a skilled, long range shooter. This book will benefit any long-range shooter, not just PRS/NRL competitors.
4. Official U.S. Army Sniper Training and Operations Manual
From U.S. Army Sources, $17.59 paperback.
This U.S. Army Sniper Training Manual is a very comprehensive resource, with over 450 pages of information in a large 8.5″x11″ format. NOTE: Unlike other editions on Amazon, this is NOT the basic, outdated FM 23-10. This is the completely-overhauled 450+ page edition (FM 3-22.10). Heavily illustrated, this is a very useful resource for tactical/practical precision shooter. Employed as the “textbook” for the U.S. Army Sniper School at Fort Benning, GA, this big manual explains ranging methods, rifle handling, optics selection and operation, and rifle maintenance.
There is also extensive discussion of ballistics, wind reading, and weather effects. Practical competitors will appreciate the discussions of moving targets, range estimation, and range safety procedures. One reviewer explains: “This book contains the distilled wisdom of the Sniper School’s instructors and expert marksmen, giving you over 450 pages of unique insight into the long range combat shooter’s art.”
Serious riflemen know that Krieger makes outstanding centerfire barrels that hold world records and have won many National Championships. But did you know that Krieger makes great rimfire barrels too? Well, Krieger does make outstanding .22 LR rimfire match barrels that can deliver impressive accuracy.
Sniper’s Hide moderator “Padom” recently tested a variety of rimfire ammo types, employing five different barrels: Krieger, Bartlein, Benchmark, Lilja, and Green Mountain. He tested at both 50 yards and 100 yards. FULL Rimfire TEST REPORT HERE.
Reporting on the 50-yard test, Padom posted: “Had a virtually dead calm day today for 50-yard RimX testing (Keystone Accuracy RimX barreled action with 1:16″ Krieger 20″ barrel). A few infrequent 3 mph gusts but pretty dead [calm] and the target showed. This Krieger just barely edged out the Bartlein by 0.003″ with a 0.177″ 6×5 with SK Rifle Match. The 10×5 was 0.198″. The best lots of Center-X weren’t far behind either. This is the first Krieger rimfire [barrel] I’ve shot and it didn’t disappoint.”
Padom noted: “Winds were much calmer tonight than this morning so the 100-yard Krieger test was a success. Winds were pretty consistent [at] 3-5 mph.”
Test Results at 100 Yards
Padom then tested ammo at 100 yards, again using his Krieger rimfire barrel: “To recap, the Krieger shot the best 50-yard results of the barrels tested so far, just barely beating the Bartlein but it was so close you can call the 50-yard results equal (.005). Well the Krieger beat all the barrels tested to date at 100 yards by a pretty good margin with Center-X. The 10×5 was incredible as well at just barely over 0.6″ showing the results were very consistent. A second lot of Center-X was right there with the previous 100-yard 6×5 best results just barely over 0.6. The third lot of Center-X shot a respectable 0.75″ 6×5. This Krieger sure is shooting very nicely. I’m really looking forward to shooting it at 300 and 400 yards[.]”
Components Tested: 20″ Krieger M24 barrel, .22 LR Match Eachus chamber 0.046 headspace, Zermatt RimX Action, Bix’N Andy TacSport Pro 2-Stage Trigger, RimX 10rd magazine, XLR Envy Pro Folding Chassis, Athlon Cronus BTR 4.5-29x56mm MIL scope.
Shooting Set-up: 100 Yards Prone with Bipod and Rear Bag.
NRA Cancels WSC and NRA Police Shooting Championships Due to COVID-19
No big money this year at the NRA World Shooting Championship — the event has been cancelled. And Likewise the NRA Police Shooting Championship will not take place in 2020. This is the Year of Pandemic, and two more major shooting events have fallen victim to COVID-19.
Yesterday the National Rifle Association (NRA) issued the following statement:
Due to the circumstances surrounding the COVID-19 pandemic and the many ensuing federal and state safety regulations and mandates, the NRA has made the difficult decision to cancel the NRA World Shooting Championship and the NRA National Police Shooting Championships. Both events were scheduled to be held in mid September 2020 in West Virginia and Mississippi respectively.
We share your disappointment that both these competitions that attract participants from across the globe had to be canceled. The NRA wishes everyone good health and the best of luck. Stay safe and healthy.
The WSC was a big deal. It attracted top multi-gun competitors such as Jerry Miculek, Dan Horner, Doug Koenig, and Bruce Piatt. The winner took home a fat check for $25,000. This unique 3-day multi-gun match tests competitors’ skills across twelve challenging stages involving nearly every major shooting discipline for rifles, shotguns, and pistols. This major match attracted both sponsored Pros and “regular Joes”. Shooters were split into two groups: a Professional Division for sponsored shooters, and the Amateur Division for non-sponsored competitors. All firearms, optics, and ammo were provided by match sponsors for both divisions.
This video shows features of past NRA World Shooting Championship
All Equipment Was Supplied at NRA World Shooting Championship
“What makes this event very unique, especially to a professional shooter, is all the equipment is supplied. You have to leave your ego at home and just try to adapt as best you can to the equipment that you have supplied.” — Jerry Miculek
WSC stages encompassed everything from trap to bullseye pistol to PRS-style precision rifle. There was even a cowboy action stage with Henry “Golden Boy” lever-action rifles.
Do primer types make a significant difference in accuracy or vertical dispersion at long range? The answer is “maybe”. Here’s one anecdotal study that tracked vertical variance among six different primer types. The tester is a good shooter with a very accurate rifle — four of the six 4-shot groups were under 2″ at 500 yards. This test doesn’t settle the question, but does suggest that it may be worth trying a few different primer types with your match ammo.
Here is a very interesting test for the 6 BRA (6mmBR Ackley) cartridge. Forum member James Phillips, a talented long-range benchrest shooter, tested SIX different primer types from three different manufacturers. To help determine vertical dispersion, James set his target out at 500 yards. He then proceeded to shoot 4-shot groups, in order, with each primer type. Velocities were recorded with a chrono. The photo above shows the results. James says: “I’ll retest the best two for accuracy and consistency with 10 shots each”. CLICK HERE for full-screen target photo.
As you can see, ALL the groups are pretty impressive. The smallest groups, 1.253″, was shot with CCI 400 primers. Next best (and very close) was CCI BR4, at 1.275″ for four shots. The “flat line” winner was the Remington 7.5, at upper left. There was almost no vertical. If you are intrigued by this interesting primer test, you can join the discussion in this Primer Test FORUM THREAD.
Primer Brand
Group Size
Velocity
Extreme Spread
Std Deviation
Remington 7.5
1.985″ 4 shot
2955 FPS
8 FPS
4.0 FPS
Federal 205M
2.200″ 4 shot
2951 FPS
11 FPS
4.8 FPS
Sellier Bellot SR
1.673″ 4 shot
2950 FPS
14 FPS
5.9 FPS
CCI 450M
2.341″ 4 shot
2947 FPS
14 FPS
6.6 FPS
CCI 400
1.253″ 4 shot
2950 FPS
3 FPS
1.3 FPS
CCI BR4
1.275″ 4 shot
2949 FPS
15 FPS
6.9 FPS
CARTRIDGE: 6mmBR Ackley, aka 6 BRA. Parent case is 6mmBR Norma. The 6 BRA is fire-formed to create a 40-degree shoulder and less body taper. Capacity is increased, but the neck is longer than a 6mm Dasher. The capacity is enough to get to the 2950+ FPS accuracy node. Some shooters say the 6 BRA is more forgiving than the 6mm Dasher. The 6 BRA is certainly easier to fire-form.
TEST REPORT — Conditions, Shooting Method, Loading Method
Tester James Phillips posted this report in ourShooters’ Forum:
Conditions: The testing was done in the morning over flags. The flags never moved or even twitched. I had as perfect conditions as I could have asked for. It was overcast so no mirage and no wind. There were no other shooters, just me.
Test Procedure: Each shot was precisely shot at my pace and centered the best possible using my Nightforce 15-55X scope. I did not use the round-robin method. Each four-shot group with the same was shot at one time. Then I moved onto the next primer. Everything felt right for each and every shot fired today. Of course I could repeat the test tomorrow and it could be exact opposite of today’s test. We can chase this forever. But [soon] I’m going to test the BR4 and 400 primer… for best accuracy and consistency for 10 shots each.
How Rounds Were Loaded: Each load was weighed to one (1) kernel of powder. So I know that’s as good as I can weigh them. Each bullet seating force was within 1# on my 21st Century hydraulic arbor press.
Previous Initial Load Testing: All groups were shot with 31.1 grains of H4895. During initial load testing I settled in on the Sellier & Bellot primer to finalize everything as it showed more promise over the CCI 450 Magnum I also tried. I was actually surprised to have seen the higher ES and SD from that primer today along with the vertical shown. [Editor: Look carefully — one shot from the CCI 450 is right in the center black diamond, stretching the vertical. By contrast the Rem 7.5 had almost no vertical.]
Groups Shot at 500 Yards with 6 BRA
Velocity and NODE Considerations: I was about 5-6 FPS above what appeared to been my optimum velocity of 2943-2945 FPS, so I’ll test 5 shots of 31.0 and 5 of 31.1 and see what happens from there. I can only assume my velocities where higher due to the higher humidity and of course temps were 5 degrees warmer this morning as well. It wasn’t far off but I noticed it.
Report by Craig Arnzen, Area 419
As the PRS and other tactical/practical competitions continue to grow, a guy tends to wonder, just how good are the top competitors? And what are they actually doing (and viewing) as they complete a stage? Well, a great video from the new Long Range Precision Shooters YouTube Channel let us see what the best in the sport see through their scopes when they shoot.
This video features Dave Preston, 2015 National Champion and perennial powerhouse, shooting the PRS Skills barricade. Dave Preston is widely considered the best in the nation running this PRS stage. Dave nearly always shoots 100% with the fastest recorded time. In this video you’ll see him successfully engage all eight shots in under 43 seconds — that’s crazy fast. This includes a POV sequence (4:35 time-mark) showing the actual view through Dave’s scope as he completes the stage.
Watch this video! Dave offers excellent advice on gun-handling and body positioning for barricades. Listen to what he says and you WILL shoot better.
This video features the PRS Skills Barricade, an 8-round, 4-position stage featured at the majority of PRS matches throughout country. It’s called a “Skills Stage” as it is run the same way at every national match and gives shooters the ability to compare skill levels based on hit percentage and speed.
The target is a 10″ plate at 400 yards. There are four different positions, with two shots each. Most people run this stage in about 70 seconds, some in the mid-60s, the greats in the high 50s, and Dave does it in the low 40s… mighty impressive!
The Right Gear Aids Stability and Lets You Shoot Faster
Let’s also take a look at two pieces of gear that really helped Dave Preston get stable and shoot fast.
1. BARRICADE BAG — To Get Stable, Really Stable
In the video Dave is using a Solo Sac from Short Action Precision This bag was designed by USMC Solomon Mansalala, and $5 of every purchase goes to help the Marine Scout Snipers buy gear. It’s a very soft/dense bag and is popular at matches.
The other bag that sees a LOT of use, and is far and away the most used, is the patented Gamechanger Bag from Reasor Precision Solutions and Armageddon Gear.
2. MUZZLE BRAKE — To Make Your Follow-Up Faster
You’ll notice that in the video the rifle is very steady through firing, even though he is not applying a lot of pressure to the rifle. Dave is using a Hellfire Muzzle Brake from Area 419. Combined with the soft-recoiling 6mmBR cartridge he is able to spot his impacts and make adjustments, and can also make very fast follow-up shots as his rifle hasn’t bounced way off target.
The 30 BR is an amazing little cartridge. However, 30 BR shooters do have to neck-up 6mmBR or 7mmBR brass and then deal with some issues that can arise from the expansion process. One of our Forum members was concerned about the donut that can form at the new (expanded) neck-shoulder junction. Respected bullet-maker Randy Robinett offers tips on how to deal with the “dreaded donut”.
The Forum member was concerned about thinning the brass if he turned his 30 BR necks after expansion: “Everything I have found on 30 BR case-forming says to simply turn off the bulge at the base of the neck caused by the old 6BR shoulder. I expanded my first case and measured the neck at 0.329″ except on the donut, where it measures 0.335″. Looking inside the case… reveals a groove inside the case under the donut. Now, it is a fact that when I turn that neck and remove the donut, the groove is still going to be there on the inside? That means there is now a thin-spot ring at the base of the neck that is .005 thinner than the rest of the neck. Has anyone experienced a neck cracking on this ring?”
Randy Robinett, who runs BIB Bullet Co., is one of the “founding fathers” of the 30 BR who help prove and popularize the 30 BR for benchrest score shooting. Randy offers this advice on 30 BR case-forming:
While the thinner neck-base was one of our original concerns, unless one cuts too deeply INTO the shoulder, it is not a problem. For my original 30BR chamber, thirty (30) cases were used to fire 6,400 rounds through the barrel. The cases were never annealed, yet there were ZERO case failures, neck separations, or splits. The case-necks were turned for a loaded-round neck diameter of .328″, and, from the beginning, sized with a .324″ neck-bushing.
The best method for avoiding the ‘bulge’ is to fire-form prior to neck-turning (several methods are successfully employed). Cutting too deeply into the shoulder can result in case-neck separations. I have witnessed this, but, with several barrels and thousands to shots fired, have not [personally] experienced it. The last registered BR event fired using that original barrel produced a 500-27x score and a second-place finish. [That’s] not bad for 6K plus shots, at something over 200 firings per case.
Check out the 30 BR Cartridge Guide on AccurateShooter.com
You’ll find more information on 30 BR Case-forming in our 30 BR Cartridge Guide. Here’s a short excerpt from that page — some tips provided by benchrest for score and HBR shooter Al Nyhus:
30 BR Case-Forming Procedure by Al Nyhus
The 30 BR cartridge is formed by necking-up 6mmBR or 7mmBR brass. You can do this in multiple stages or in one pass. You can use either an expander mandrel (like Joe Entrekin does), or a tapered button in a regular dies. Personally, I use a Redding tapered expander button, part number 16307. This expands the necks from 6mm to .30 cal in one pass. It works well as long as you lube the mandrel and the inside of the necks. I’ve also used the Sinclair expander body with a succession of larger mandrels, but this is a lot more work and the necks stay straighter with the Redding tapered button. This button can be used in any Redding die that has a large enough inside diameter to accept the BR case without any case-to-die contact.
Don’t be concerned about how straight the necks are before firing them the first time. When you whap them with around 50,000 psi, they will straighten out just fine! I recommend not seating the bullets into the lands for the first firing, provided there is an adequate light crush-fit of the case in the chamber. The Lapua cases will shorten from approx. 1.550″ to around 1.520″ after being necked up to 30-caliber I trim to 1.500″ with the (suggested) 1.520 length chambers. I don’t deburr the flash holes or uniform the primer pockets until after the first firing. I use a Ron Hoehn flash hole deburring tool that indexes on the primer pocket, not through the case mouth. — Al Nyhus
In an article for the CMP Online Magazine, SSG Tobie Tomlinson of the USAMU Service Rifle Team explains the various sight alignments employed by iron sights shooters. Tobie writes: “There are a myriad of sight picture options that shooters have used to great effect over the years. The sight picture that allows you to consistently shoot the smallest group, with a minimal shift in zeros, is the correct one. Remember, for any shooter to be successful, consistent sight picture must be complemented by front sight focus and sight alignment.” CLICK HERE to read FULL ARTICLE
Center Hold
6 O’Clock Hold
Sub 6 Hold
Frame Hold
Amazing Handgun Accuracy at 50 yards
Test Results at 100 Yards
The 30 BR is an amazing little cartridge. However, 30 BR shooters do have to neck-up 6mmBR or 7mmBR brass and then deal with some issues that can arise from the expansion process. One of our Forum members was concerned about the donut that can form at the new (expanded) neck-shoulder junction. Respected bullet-maker Randy Robinett offers tips on how to deal with the “dreaded donut”.
