This story, from our Gun of the Week Archives, offers a good intro to the 30 BR cartridge, which is still the leading chambering for short-range Score Benchrest.
What’s better than one custom-built 30 BR with gorgeous wood and top-shelf components? A matching pair of course. Just ask Australian shooter Greg Roche (“Caduceus” in our Forum). A decade ago, Greg spent two years living and working in the USA. While in America, he commissioned two matched custom rifles to bring back to Australia for Hunter Class BR matches. Though the look-alike rigs are both chambered in 30 BR, one is designed for the Australian “Traditional” centerfire Hunter Class (10-lb limit), while the other is purpose-built for the “Custom” centerfire Hunter Class (14-lb limit). The 10-lb Traditional rifle features a fully-functioning two-round magazine and a 6-power scope. In contrast the Custom Class rifle is a single-shot action, with a 45X Leupold scope. The Custom weighs 13.5 pounds so it can also be used in traditional Heavy Varmint Benchrest matches if desired.
Tale of Two Rifles Story and Photos by Greg Roche (“Caduceus”)
The USA boasts some of the finest precision rifle-builders and Benchrest parts suppliers in the world. Before returning to Australia after two years in the States, I decided to have two special BR rifles built using American components and skilled labor. I wanted a matched pair–twin guns that would be as handsome as they were accurate. The heavier gun of the pair, the 13.5-lb Custom Class rifle, features top-of-the-line (but well-proven) technologies and components. With the 10.5-lb Traditional Class rifle, we had to develop new solutions to allow the 30 BR cartridge to feed from a functional two-round magazine. Here is my saga of how my twin 30 BRs were conceived and built, and how they have performed in competition.
BACKGROUND — The 30 BR for Score Competition
The 30 BR is a wildcat cartridge based on a necked-up version of the 6mmBR Norma case. It originated in U.S. Benchrest circles where it found its niche in Varmint For Score (VFS) matches. Unlike traditional Benchrest, where group size determines the winner, VFS matches are shot on a target with multiple, concentric-ringed bullseyes. Point total is based on “best edge” shot location (one shot per bull). In score competition, the 30 BR’s “supersized” .308-diameter hole offers an advantage over the 6mm hole created by a 6 PPC, the dominant group BR chambering.
The starting point for loading the 30 BR wildcat is Lapua 6mmBR brass. These are necked up as a single-step operation using a .30 caliber tapered expander ball (or dedicated expander mandrel). This will leave a bulge in the neck, so the expanded case neck is normally turned to bring the thickness down to the correct dimension for the chamber. I turned these necks down to .010″ wall thickness using a Stiller neck-turning tool. It features an eccentric mandrel similar to the Nielson “Pumpkin”. Loaded rounds measure .328″ neck diameter. This gives minimum clearance in my .330″ neck chamber, so very little neck resizing is needed after firing. Cases are trimmed to 1.500″ prior to turning to ensure consistency since the Stiller tool indexes the length of cut off the case mouth. Other than that, cases are just chamfered, loaded and made ready to shoot. No special fire-forming is required.
17-Twist Barrels for Both Rifles
Texan gunsmith Mike Bryant chambered both barrels. Mike also polished both barrels to a high-gloss to match the receivers. In this game, barrels are consumables, much like powder and primers, so most owners wouldn’t bother to polish their barrels. However a 30 BR barrel can provide up to 5000 rounds of accurate life (unlike a 6PPC barrel which might be tossed after 800-1000 rounds.) So, these barrels are likely to be on the rifles for many seasons. Given the high-gloss finish of the Grizzly actions and the beauty of the Red Cedar stocks, it would have been an injustice to leave a dull finish on the barrels.
The chambers were both cut with the same reamer supplied by Dave Kiff of Pacific Tool and Gauge. Randy Robinett, one of the originators of the 30 BR wildcat, specified the reamer dimensions. Randy’s 118gr, 10-ogive custom BIB bullets and the 30 BR cartridge enjoy a winning track record in the USA. The 30 BR Robinette reamer has zero free-bore and a .330″ neck, and is optimized for the BIB 118s. The bullets perform best when seated far enough out to jam firmly into the rifling as the bolt is closed. The long ogive means the bullet’s bearing surface is very short.
Slow Twists for Maximum Accuracy
You may note the unusually slow twist rate of both barrels. In most .30-caliber chamberings, the barrel twist rate is 1:11 or 1:12 to stabilize 150gr to 200gr bullets. The 30 BR is optimized for 115gr to 118gr flat-base bullets and 1:17 provides sufficient stability at muzzle velocities around 2900-3000 fps. In competitive Benchrest, where every thousandth of an inch counts, over-stabilization of projectiles can hurt accuracy, so “just stable enough” is the goal; hence the 1:17 twist.
Case Forming, Case Prep, and Reloading Methods
A Sinclair case neck micrometer indicates neck thickness of 0.010″ after neck turning.
30 BR dies are readily available from a number of manufacturers. I personally use Wilson neck and seating dies with a Sinclair Arbor press, but Redding and Forster both supply high-quality threaded dies for use in a conventional press. For under $100.00 US, custom full-length dies can be obtained from Hornady and CH Tool & Die by sending them reamer prints or a couple of fired cases. Harrell’s Precision offers “semi-custom” dies. Just send them some fired cases and they select a pre-made CNC-cut die that ideally fits your chamber. You can ask the Harrell brothers for a die that’s tighter at the shoulder or base, or otherwise customized to your preferences.
Load Development and Accuracy Testing
With cases formed and bullets selected, load development is simply a matter of choosing the right primer, powder and charge weight, and loading the most consistent ammunition possible. The Lapua BR cases use a small rifle primer. The choice here was Federal 205 Match primers vs. CCI BR4 Benchrest primers. Some shooters have also had success using CCI 450 Magnum primers but it is very unlikely the small case needs this much spark to light off regular extruded powders. In my case, I selected Federal primers because availability tends to be better in Australia.
The relatively large bore-to-capacity ratio of the 30 BR case means that fast burning powders are the order of the day. Once again, US experience suggests H4198 (the Hodgdon equivalent of ADI AR2207) is the choice of match winners. The fact that H4198/AR2207 is an Australian-made product is an added bonus. So, I loaded up test rounds with AR2207 from 32.5 grains to 35.0 grains in approximately 0.3 grain increments. All bullets were seated to jam +0.010″ into the lands. This places the bullet base about two-thirds of the way down the neck and well short of the neck-shoulder junction.
We like “outside of the box” thinking. And in the world of competitive shooting, it doesn’t get more unconventional than this. But this radical liquid-cooled benchrest rig wasn’t just a crazy experiment — it actually delivered the goods. This IBS Heavy Gun, built by Joel Pendergraft, produced a superb 10-shot, 3.044″ group that stood as an International Benchrest Shooters (IBS) 1000-Yard Heavy Gun record for seven years, not being broken until 2016*.
Using this water-cooled 300 Ackley Improved, Joel shot the record-breaking group in April 2009 at Hawks Ridge, NC. This monster features a 12-twist, 4-groove Krieger barrel inside a water-filled sleeve (like on a liquid-cooled machine gun). Joel shot BIB 187gr flat-based bullets in Norma brass, pushed by a “generous amount” of Alliant Reloder 25 and Federal 210M primers.
This 3.044″ 10-shot group was a remarkable accomplishment, breaking one of the longest-standing, 1000-yard World Records.
Pendergraft was modest after his notable achievement: “What makes this so very special is to be able to celebrate the accomplishment with all of my shooting friends[.] A good friend once said that records are shot when preparation and opportunity meet. I feel blessed to have personally had the opportunity. The preparation we can individually work on and achieve but the opportunity only comes to a few. Those of you that compete in long range competition will know what I mean.”
*On July 24, 2016, Michael Gaizauskas shot a 2.871″ ten-shot group that bettered Pendergraft’s record by 0.171″ (less than a quarter inch). Michael’s group was also all in the 10 ring, for a perfect 100 score. CLICK HERE for IBS Long-Range Records
Report by Boyd Allen, IBS Executive VP
The 2017 IBS 600-Yard Nationals were held October 20-21 at the Memphis Sport Shooting Association (MSSA) Range. There was a good turn-out for the event, with 80 shooters. Conditions were challenging Saturday afternoon — strong winds that put some shooters right off the target. But those who mastered the conditions earned glory. The “Top Gun” at this year’s Nationals, earning the title of IBS 600-yard National Champion, was Andy Ferguson. In winning the Two-Gun Overall, Andy turned in a truly dominant performance, recording First Place Score in both Light Gun and Heavy Gun classes, along with second in HG group and fourth in LG Group. Finishing second Overall was Gaylan Breyans, while Jim Bauer was third.
Top Shooters (L to R): Steve Wilson, Scotty Powell, Seth Wooten, Gene Ford, Lindsey Talley, Andy ”Who” Ferguson, Gaylon Breans, Jim Bauer, Justin Dale, Darrell Jones, James Lederer, Robby Miles, Jeff Godfrey, Jason Wolfe, Mike Hanes. NOTE: CLICK PHOTO for large image of top shooters.
Today’s 600-yard benchrest rigs are capable of remarkable accuracy. Even with tough conditions in the afternoons, there was some pretty impressive shooting. Out of 640 targets that were shot by 80 competitors there were 27 scores of 50, 56 groups of 2” or less, 14 of 1.50” or less, 3 groups of 1.25″ or less, and one of 1” or less. See the FULL Results for more details.
Demonstration of Winning Form — Smooth and Fast
How do you win a 600-Yard National Benchrest Championship? Here’s a video answer to that question. To see how a top shooter handles his rifle on the bench, watch the short clip below of Two-Gun Winner Andy Ferguson shooting one of his targets with his 6BR Light Gun. Andy demonstrates smooth “table manners”. He keeps his head down, running off five shots in under 15 seconds. Note how well the gun tracks, returning to Point of Aim.
Match Winner Andy Ferguson Drills Five Shots in Under 15 seconds with his Light Gun
Notably, Andy won the match shooting the “plain vanilla” 6mmBR Norma — not a Dasher, not a 6 BRX, not a 6 BR Ackley. The parent 6mmBR cartridge can still do the job, particularly in the hands of a smooth shooter like Andy Ferguson. At the Memphis range, the usual strategy is to shoot on the sighter gong just before the switch to the record and then fire all shots on the record target as rapidly as possible to stay in the same wind condition.
600-Yard Benchrest Competition — The Basics
Two Classes — Light Gun and Heavy Gun
For those that are not familiar with this 600-yard Benchrest competition, the equipment rules are the same as for 1,000-yard Benchrest. There are two classes of rifles. The Light Gun (LG) rifles are limited to 17 pounds with no stock width or buttstock angle restrictions. The front and rear of these rifles must rest on sand bags. The rear bag may not have any provision for aiming the rifle.
Heavy Gun (HG) rifles have no weight limit. Like the LGs their stocks are not limited as to width or butt stock shape. HG rear sand bags may be supported by “mechanical” rests. Return to battery rests are not allowed for either class. Both HG and LG classes may use muzzle brakes.
Match Procedures at Memphis
In 600-yard IBS Benchrest competition, targets are measured for group size and there is also a score value based on shot placement in the target rings. Prizes are awarded for group, score, and combined. Before the first record target of an Aggregate, the sighter period is six minutes. For subsequent targets in that Agg, it is reduced to two minutes. At the end of sighter period, upon command, shooters have 10 minutes to complete their record target. Aggregates consist of eight targets. Shots that do not print on the target result in that target being disqualified (DQ), as well as the applicable Aggregate.
At this year’s Nationals, shooters rotated four benches to the right after every pair of targets was shot, continuing that rotation through both days. LG was shot on Friday, HG on Saturday. Thanks to an efficient target crew and recorded match commands, shooting was over by 2:25 pm both days.
Equipment List for Top Ten Shooters
The Top Ten Shooters all ran 6mm cartridges (6BRs and Dashers) loaded with similar components. All of the Top Ten who listed their components ran Varget powder and CCI 450 primers in Lapua brass. BAT Actions were predominant, and both Nightforce and Sightron scopes were popular. The top projectiles were Vapor Trail 103s and Berger 105s.
Top Ten Equipment List CLICK HERE for longer Equipment List.
A Well-Run Match
According to all reports the entire event ran like a well-oiled machine. The target crew was quick and skilled and all of the other details were handled efficiently. Prizes and trophies were in abundance. There was even some originality. Much to everyone’s amusement, instead of the usual (boring) plaque or trophy for the Two-Gun winner, a professional wrestling-style Prize Belt was awarded. Great idea! Showing off the Champ’s Belt is Two-Gun winner Andy Ferguson (Right) with past Shooter-of-the-Year Richard Schatz.
Wicked Winds Challenge Shooters on Saturday
The conditions were variously described as “horrible”, the “worst for any match on this range this year”, and so on. Conditions were worse on Saturday than Friday, blowing like stink by the end of the day. Friday morning it was cool, humid and breezy, with a wind speed of a little over 3 mph. By mid-afternoon, when the match finished, it was 20 degrees warmer and the wind had increased significantly to about 9 mph. Saturday morning was warmer, less humid, and the wind speed was about the same as Friday afternoon. But by mid-afternoon, at the end of the match, the wind was blowing 15 mph having peaked an hour earlier at 17 mph!
Doing a little research on the Berger Bullets website, with a 105gr VLD running 2950 fps, and a 15 mph wind coming from 5 O’Clock, the bullet deflection at 600 yards would be over 17.5 inches. There were a fair number of shooters with good records that missed targets.
Good Deed by Match Director Mike Moses
Match Director Mike Moses “paid it forward” this year in Memphis. Mike learned that his friend, bullet-maker Bart Sauter, had invited a young barrel-maker, James Lederer, to the Nationals. As this would be Lederer’s first 600-yard experience, Bart was going to lend Lederer one of Bart’s rifles. But it had another maker’s barrel installed. Mike decided Lederer should, fittingly, use a barrel Lederer made himself. So Mike then chambered up one of two Lederer barrels Mike had recently purchased, and fitted it to one of his own rifles. Mike then fire-formed cases, worked up a load, and assembled ammo for the match.
Mike prepared three complete rifles (and ammo) for the match — one for himself, one for his daughter (Lindsey Talley, ace photographer), and one for James Lederer. It’s hard enough to prepare a Nationals rig for one shooter. Mike did it for three people, PLUS he ran the match.
How did it work out? James Lederer finished mid-pack on Friday, and put what he had learned to good use on Saturday, taking a solid fourth place in Heavy Gun.
Both Bart and Mike have been impressed with the quality of Lederer barrels. James has several years’ experience working for a well-known barrel-maker before designing his own computer-controlled cut-rifling machine, and opening his own one-man shop.
Bauer Power — Jim and Sally Bauer at IBS 600-Yard Nationals
Jim Bauer sends 5 record rounds down range with his “Eagle” HG in Maxi-Tracker stock.
Sally Bauer shoots sighter rounds with her Stars & Stripes HG Maxi-Tracker.
The Bauers have a great transport set-up, with custom, slide-out rifle carriers fitted to their van. You can see the two Heavy Guns featured in the videos in the lower drawer.
The Memphis Sport Shooting Association Facility
The Memphis Sport Shooting Association operates an impressive facility with ranges for rifle, pistol, and shotgun. The 600-yard benchrest range, with covered firing line, is nicely sited, with thick stands of trees left and right. There are 24 very solid concrete-top benches. Plentiful rain and sunshine provide ideal conditions for trees and grass. For those of us in the arid West, the Memphis range seems green and lush. The trees on either side offer some (but obviously not complete) protection from wind.
The range was built on land that had been an across-the-course High Power range, and the raised berms for intermediate firing lines are still present. That makes the wind bit more “interesting” when head- or tail-wind angles prevail. There are no pits. For each bench, at 600 yards, two record targets are posted one above the other with a 20” square steel sighter gong directly below. The sighter plates are repainted throughout the day during target changes. CLICK HERE for a 360-degree video view of the range from the covered firing line.
To the IBS Membership — Thanks for Helping with Match Reports
Putting together these match reports for the IBS page on Accurateshooter.com is challenging and enjoyable work. The hard part is coming up with pictures and videos. This time I have been lucky and I am thankful for that. The best part is that I get to talk to some very fine people. Thank you all for taking the time to make my work possible. I appreciate it. — Boyd Allen
Credit Randy Dawson (Birdog) for most of the images and videos used here.
Gary Ocock let the event’s youngest competitor, 12-year-old Gavin Lichtenwalter, shoot Gary’s new Railgun for the last three matches on Sunday afternoon. The day before Gary shot what should be a new IBS 100-yard, five-shot HB group record. Photo credit: Ben Zentner
Heavy Benchrest (Unlimited) rifles, also known as “Railguns”, are the most accurate competition firearms ever invented. And these amazing examples of shooting technology showed their capability recently, with potentially four (4) new records being set at an IBS Heavy Benchrest Invitational match in Visalia, California. If you are curious about the most accurate rifles on the planet, then read on…
2017 Visalia Invitational — IBS Heavy Benchrest Match
Report by Boyd Allen, IBS Exec. Vice President
There was some amazing shooting at a recent Invitational Heavy Benchrest match* held in Visalia, California on October 21-22, 2017. No less than FOUR new Heavy Benchrest (HB) records may have been set. Three individual targets were submitted for the 100-yard HB five-shot group record, a .039 by Gary Ocock (photo below), along with two targets by Jim Nicolas, a .040 and .041.
Multiple Aggregate records (at both 100 and 200 yards) may also have been set. Larry Boers shot a 100-yard, five-target 0.1232 Aggregate that will be submitted for the IBS HB 100-yard, five-shot group Agg record. And Gary Ocock may have set two additional HB Agg records. Gary’s five-target 200-yard Agg (0.1310) is a potential new five-shot-per-target record, as is his ten-target Grand Agg (0.1480) (that covers 100 AND 200 yards, five targets per yardage, ten targets total).
Top Guns Come to IBS Match in California
This California match attracted some of the best Railgun pilots in the game today. On the firing line were three current NBRSA Unlimited record holders: Larry Boers (one record), Steve Kostanich (two records), and Gary Ocock (three current NBRSA UNL records, plus one HV). All three shot well enough in this match that their targets are being submitted to the IBS for consideration as Group, Aggregate, or Grand Aggregate records. NOTE: The “Heavy Benchrest” IBS category is equivalent to “Unlimited” under NBRSA rules. CLICK HERE for Complete Match Results.
Top Shooters for the Match included: Larry Boers (Two Gun, HB GrAgg1, HB 100-yd); Gary Ocock (HB 200-yd and HB GrAgg2); Francis Lee (HB 200-yd).
Two-Gun Overall Results Note: The computer software shows the results for one Grand Agg as “Heavy Varmint”. In fact the SAME HB Railguns were used for both Grand Aggs, so the “Two-Gun Agg” is actually a pair of HB Aggs.
Top Equipment List
Saturday Winners: George Lozano, Larry Boers, Lawrence Weisdorn, Gary Ocock, Joe Stanovich, and Jim Nicolas. Photo by: Dan Lutke.
Conditions: It rained on Friday, but Saturday and Sunday were sunny and slightly cool at first and perfect after that. Saturday at 10:00 am it was 62°, 64%, and the wind was light, increasing slightly later in the day. Sunday’s conditions were similar with a slightly higher wind speed, but still light. The wind was from the West at 3-10 mph, generally stronger closer to the firing line than down range. This normally is more of a picker’s range than a runner’s venue. However, there was some “running” of groups this weekend since rail guns are particularly suited for that style of shooting.
Hall of Famer Helps Young Novice
Along with the seasoned veterans, there was a new competitor, a 12-year-old shooting his very first match. As with life, there were highs and lows. Young Gavin started out with an equipment failure — the rifle he brought wasn’t working, so shooter Bob Hatley let Gavin borrow Bob’s bag gun. Then Gavin got some expert assistance from one of the world’s best — Hall of Famer Gary Ocock. Gary let Gavin shoot the last three 200-yard matches with Gary’s new integral block, Jay Young-built Railgun, one of the most accurate firearms on the planet. Gary shot this rig on relay #1 and let Gavin shoot it in relay #2. How many of us will ever get this kind of opportunity, much less a first time 12-year-old competitor? It’s like a school kid getting to drive an Indy-winning race car.
This photo shows Gavin with family and friends: Grandmother Mary Oulrey, father Mark Lichtenwalter (second from left), grandfather Gary Oulrey (far right). Bob Hatley (extreme left) stepped up to share his bag rifle with Gavin, and Gary Ocock (right of Gavin) let Gavin shoot his Railgun. Note Gavin is wearing Gary’s Hall-of-Fame jacket.
The Facility at Visala — Dale Wimp Rifle and Pistol Range
The Visalia Range has a covered firing line with 28 fixed, monolithic steel-reinforced concrete benches. The direction of fire is north. The cover extends well past the front of the benches as does the concrete. There are covered loading areas both at the level of the benches, directly behind them, and one level up farther to the rear. The firing line and range are below the level of the surrounding land, having been excavated in flat ground with the material from the excavation surrounding the range on three sides, higher in the back, forming an impact berm. A major construction project is about to be finished that will extend the range to 300 yards, and provide a new 10-station, 25-yard pistol range.
Surrounded by fields, the Visalia Range is located in California’s Central Valley, a rich agricultural area.
Notables on the Visalia Firing Line
Three of the competitors at the match deserve special mention because of their recent accomplishments in the world of Benchrest shooting and the interesting equipment they had on display.
Jim Nicholas was on fire on Saturday. During Saturday morning’s 100-yard Aggregate he shot a .040 in the fourth match, and a .041 in the fifth. Both targets and the .039 that Gary Ocock shot were sent in to be measured for a record. All are substantially smaller than the current record, Hap Zeiser’s .063. In the photo above, note the tuner. Jim adjusted a little less than 8 degrees just before he shot .040 in the fourth match and .041 in the fifth. That must have been the “sweet spot”. Jim’s blue Railgun, built by Craig Kinsler, features a barrel block that is integral with the rig top. This is like the new Jay Young Railgun Ocock shoots.
Larry Boers owns the NBRSA Unlimited, 100-yard 10-shot group record (.097). This makes the fourth time that he has won the Two-Gun Overall for this match. Larry is not just a trigger-puller — he makes his own bullets and chambers his own barrels. This year he shot a bullet he still lists under his bullet-making mentor’s name (Del Bishop) a 65 grain, double radius 5/9 FB made from J4 .790 jackets, out of a Nemi point die. Del originally made the bullet and the story is that Nemi at first refused to make the die because he was sure that it wouldn’t shoot well. Later, after some cajoling by Del, he made it, tried a few and excitedly called Dell to tell him just how good the bullets shot. Larry set his record shooting a .750 jacket short BT (.040) bullet from the same die.
Steve Kostanich, a long-time competitor and highly-respected gunsmith from Washington State, recently received official confirmation that he will go in the record books with a pair of 10-shot Unlimited NBRSA world records. The first record is a 10-shot 200-yard 0.1839 Aggregate, while the second is Steve’s 100-200 yard 0.1951 Grand Aggregate.
Parting Shot — This is what happens when you set your Wind Flag stand too high.
* Course of Fire: This was a two-day Heavy Benchrest (aka HB or “Unlimited”) weekend match with targets at 100 and 200 yards, five shots per target. Saturday all shooting was at 100 yards. Sunday all shooting was at 200 yards. There were two (2) Grand Aggregates. One Grand Agg combined Saturday morning (100) with Sunday afternoon (200). The Second Grand Agg combined Saturday afternoon (100) and Sunday morning (200). The match had two HB Grand Aggs because only one class of gun (Heavy Benchrest or “Unlimited”) was shot. The computer software shows the results for one Grand Agg as “Heavy Varmint”, but all matches were for Heavy Benchrest (Unlimited) guns. NOTE: Some competitors did shoot bag guns as these are allowed under HB/Unlimited rules.
The International Benchrest Shooters (IBS) is pleased to announce the hiring of Boyd Allen as its new Executive Vice President/IBS Editor. Boyd will be responsible for guiding the IBS’s marketing and Public Relations efforts. He will handle all articles on IBS’s web partner, Accurateshooter.com, the leading rifle accuracy site on the Internet. He will also coordinate and contribute to preparation of match reports on Accurateshooter.com for IBS National Championships and other featured matches. Boyd will also work with the IBS Executive Board and discipline committees on rulebook and other administrative activities. Boyd Allen can be reached at: boydallen [at] live.com.
A long-time competitive shooter, Boyd has competed in registered benchrest matches near his home in Fresno, CA. He has written for both Precision Shooting magazine and Shooter’s News. Most recently, Boyd has been a regular contributor to Accurateshooter.com and an active Forum member. Boyd will help the IBS reach a broader audience through AccurateShooter.com and social media. He expects to enhance match reports and also do regular articles on benchrest equipment and trends. He will spearhead a proposed 300-yard exhibition match in 2018 that can bring together shooters from multiple precision rifle disciplines. (Editor: We like this idea — this 300-yard showdown could be the ultimate “bragging rights” match with “point-blank” PPC shooters dueling with Dasher pilots and F-Class aces.)
The IBS is a leading organization for group and score benchrest competition, including the 100/200/300 benchrest games, along with 600-yard and 1000-yard benchrest disciplines.
News Tip from Edlongrange. We welcome reader submissions.
2017 IBS 1000-Yard Benchrest Nationals Report By Boyd Allen
On September 1-4, the IBS held its 2017 1000-yard Benchrest Nationals at the Whitehorse Shooting Center in Peeltree, West Virginia. There was a great turn-out this year, with 118 entries in Light Gun Class (17-lb limit, 5 shots per target) class and 107 shooters in Heavy Gun Class (Unlimited weight, 10 shots per target). The conditions this year were challenging to say the least, with rain storms, spiraling winds, and fog. In fact, rain and fog on Saturday (with cancelled relays) caused the Nationals to be extended by one day through Monday, September 4th. What’s more, of the 107 shooters listed in the Two-Gun Overall results who actually shot both guns, there were dozens of DQs. (Yes, the wind was a bit tricky at this year’s Nationals.)
Sam Hall, past IBS Shooter of the Year, provided this image and most of the photos in this report.
Congratulations to the “top guns” at the Nationals: Edward Kenzakoski (Two-Gun Overall Champion), Mike Gaizauskas (Light Gun Overall, plus LG Score Agg), and Mike Brennan (Heavy Gun Overall, plus HG Score Agg). Group Agg winners were Richard Schatz for LG, and Charlie Lentz for Heavy. Two ladies also deserve mention. Sally Bauer shot the smallest group of the match, a 1.923″ 5-shot group in LG — that’s 0.184 MOA! Ruth Edwards drilled a 2.104″, also mighty impressive. Nice shootin’ ladies…
White Horse Wind and Weather Factors — and Topography
The firing line for the 1000-yard range has a covered structure with 14 well-spaced masonry benches with block bases and cast concrete tops. Facing southwest, the firing line is above the land between it and the target butts, which are at the head of a canyon. There is a low area with trees on the left with an elevated flat area on the right.
This topography create unpredictable wind patterns that can change rapidly with no warning. Those changes can wreak havoc with competitors’ groups and scores. The wind direction at the targets can be opposite that at the firing line, with the result that a let-off down range not only carries the penalty of making a hold-off incorrect, but because the wind at the firing line can continue, adding the additional penalty of a reversal. This was the common cause of disqualifications, which were numerous at this year’s Nationals.
Light Gun and Heavy Gun Equipment Lists (Partial Sample):
Barrel-Block Heavy Gun with a handsome wood stock. Wide fore-ends enhance stability.
Delay Caused by Fog and Rain
On Saturday, rain and fog delays, caused the match to be extended through Monday. The rules dictate that if a full match cannot be finished because of weather, then all of the day’s results are discarded. This meant that even those shooters who completed their relays on Saturday had to shoot them over — hence another day was added to the event. Because of the prospect of worsening conditions on Saturday afternoon, even though there was daylight left, the decision was made to extend the match through Monday.
Profile of 2017 IBS 1000-Yard National Champion Edward Kenzakoski
Commenting on his performance at the Nationals, Ed said modestly:
“I didn’t shoot really good. I just shot better than them other guys.”
Winning Hardware (with a 110-lb Heavy Gun)
Notably, Ed does all of his own gunsmithing, and he built his Championship-winning rifles. Both guns featured 1:11″-twist, 30″ Krieger barrels. (LG: 1.250″ shank and .950 muzzle; HG: 2″ contour untapered). Ed’s Light Gun has a BAT action, no barrel block, Jewell trigger, and McMillan Tooley MBR stock. His Heavy Gun boasts a 10″-long BAT action in a two-piece aluminum stock with barrel block. That HG beast weighs 110 pounds! Both of Ed’s rifles (light and heavy) wore Nightforce 12-42x56mm BR scopes.
Winning Numbers
To win the Two Gun Overall, Ed posted 137 LG Score, 262 HG Score, and 399 Two-Gun Score Agg. His Group numbers were: LG Group 5.659, HG Group 7.483, Two-Gun Agg: 6.571.
Winning Loads and Reloading Methods
Both rifles are chambered in 300 WSM. Ed shoots 210gr Berger VLDs (sorted every way possible), with Norma brass, Hodgdon H4350 powder, and CCI BR2 primers. For the two guns he used very different seating depths — barely touching for the HG, 0.100″ jump for the LG. He said that it takes him a full four days to load the ammunition for both rifles for a match. Yes, he weighs primers, and he even passes his bullets through a .309 bushing.
No Dark Horse at White Horse — Kenzakoski is a Proven Winner
One shouldn’t be surprised at Edward Kenzakoski’s success. Ed really cleaned up at Williamsport this year, winning one 6-match Aggregate and two 10-match score and group Aggregates. He also established a new Williamsport club Light Gun record of 3.2″.
Last year’s winner Tom Mousel sitting at the bench on Sunday. Tom finished third overall this year.
Record-Setting Asymmetry
In 2016 Michael Gaizauskas set the current 1000-yard IBS Heavy Gun (10 shot) group and score records. He set those records with the rifle on the left (below), then chambered in 6.5×47 Lapua. In this match, Mike won LG Group and LG Overall with the rifle on the right as chambered in his own 7mm short magnum wildcat. Mike designed and built both these distinctive assymetric stocks.
Prizes and Gift Certificates Galore at White Horse
The prize table at the IBS 1000-yard Nationals was impressive, with many scopes and stocks as prizes, plus a treasure trove of gift certificates:
White Horse Shooting Center Facilities, Organization, and Location
The 1000-yard range used at the IBS 2017 Nationals is part of a large shooting facility run by Whitehorse Firearms Outdoor Education Center in cooperation with the West Virginia Division of Natural Resources. White Horse is located off of Route 20 near the small community of Peeltree, WV. The nearest town of any size, ten miles to the south, is Buckhannon, WV, which has about 5600 residents.
White Horse Geography and Climate
The White Horse range is set in wooded hill country, with lots of creeks and some smaller rivers all kept green and running by an annual rainfall of about 48 inches and about the same for snowfall. To my eyes it is beautiful county, pleasingly rural and lush, in marked contrast to where I live where every plant must be served by some sort of irrigation.
Need targets — not just any old targets, but the correctly-sized targets for specific shooting disciplines (such as NRA Smallbore, F-Class, and 1K Benchrest)? Well you won’t find them at your neighborhood Wally World store. Precise, dimensionally-correct competition targets are producted by a half-dozen specialty printers. In this article we provide links to the leading target sellers, with a chart showing “who’s got what”. Look for your particular discipline and the vendors will be specified.
Sources for Official Shooting Competition Targets:
AccurateShooter.com offers dozens of FREE, printable targets for target practice, load development, and fun shooting. We also offer a few of the most popular NRA Bullseye targets. One or more of these printable targets should work for most training purposes. However, some readers have asked: “Where can we get the real targets… exactly like the ones used in NRA, IBS, and NBRSA shooting matches?”
All these vendors carry nearly all the NRA High Power and Smallbore targets, including the new, smaller F-Class targets. National Target has the F-Class and High Power targets, including 100-yard reductions of the 200, 300, and 600-yard military targets. Germany’s Kruger Targets sells all the important NRA targets, and international (ISSF) air rifle and smallbore targets too.
Orrville Printing currently sells IBS targets for rimfire (50 yard) benchrest, short-range centerfire Benchrest (100, 200, 300 yards), Hunter BR Rifle (100, 200, 300 yards), plus the official 600-yard and 1000-yard IBS targets. National Target Company also has most of the IBS targets. NBRSA short-range, 600-yard, and 1000-yard benchrest targets are available directly from the NBRSA Business Office. Call (307) 655-7415 to order for the season.
The Visalia Sportsman’s Association Dale Wimp Shooting Range — a great place to shoot.
Report by Boyd Allen | Photos and video by Pete Kitrinos
The IBS is in the West! The first International Benchrest Shooters (IBS) match at the Visalia, CA range was held over the recent Labor Day Weekend. Despite scorching 106° heat, many of the West’s top short-range benchrest shooters assembled for the first IBS-sanctioned match (after a 30-year history with the NBRSA) at the Visalia range. The mix of shooters included at least one Benchrest Hall of Fame member, as well as NBRSA record holders. Competitors were happy to return to Visalia, which had been closed for seven months while range improvements were made (some parts of the East berm were still under construction). With only two ranges in the entire state holding short range group matches, the temporary loss of Visalia had a significant impact. It was time to get back to business — the business of shooting tiny groups.
This video includes Aerial Drone footage of the range — worth watching!
Surrounded by fields, the Visalia Range is located in California’s Central Valley, a rich agricultural area.
For about thirty years the California 3-Gun Benchrest Championship match has been held at the Visalia Sportsman’s Association Dale Wimp Range over Labor Day weekend. For all those years, the matches have been put on by local shooter and current club president Dennis Thornbury. During a good part of that time, he has also managed to keep his name in the NBRSA record book, and pick up four Benchrest Hall of Fame points, as well as having recently done a tour as NBRSA president. This year’s match is sanctioned by the IBS, a first at Visalia.
Don “The Pumpkin” Nielson used an action he fabricated, a “fat bolt” aluminum 3-lug with steel insert.
Dennis Thornbury has been putting on registered matches at the Visalia range for 30 years. He holds an NBRSA record, and has 4 Hall of Fame points.
The format: On Saturday competitors shot 100 yards all day, Sporter in the morning, Light Varmint in the afternoon. The following day the morning competition was Heavy Varmint at 100 and at lunch the targets were moved to 200 yards with Heavy Varmint being shot that afternoon. On Monday, Labor Day, at 200 yards, Light Varmint was shot in the morning and Sporter in the afternoon. All three days consisted of five, 5-shot matches in the morning and five more in the afternoon.
Morning, Day 1 — Very few “daisy wheels”. This has been the trend for many years at this range.
Getting down to business. Shown, from right to left: Henry Pinkney, Joe Stanovich, Steve Epstein, Keith Cottrell (face obscured), Jim Nicolas (standing).
Sunday Top Shots: Jack Childers, Keith Cottrell, John Pierce, Lester Bruno, Dennis Thornbury, and Don Nielson. (Yes that’s a corn field in the background):
With the big temp changes between morning and afternoon, competitors were chasing powder loads all weekend. Small groups were hard to find, so only three “screamers” were recorded all weekend, and no teen Aggs. With the oppressive heat, attrition was also a factor: “We started with 30 shooters, and ended with just 21 competitors”.
Temperatures were in the triple digits for Saturday and Sunday, backing off to the high 90s on Monday. High humidity made it feel even hotter — heat stress was a definite issue. Even the rifles seemed to be at less than their best, causing very light wind conditions to produce Aggregates that were larger than the observed wind conditions would lead one to expect. Wind was generally light and switchy. Lighter mornings with wind increasing slightly through the days. Sunday saw more wind than the other two days after ten o’clock or so.
Loading benches with the usual clutter. Note the LabRadar chronograph on a bench at the firing line. Lawrence Weisdorn tracked his velocities during the match to know when a powder charge adjustment was needed.
Top Shooters: The Top Five in the 3-Gun (HV, LV, and Sporter) Championship were: Keith Cottrell (.2534), John Pierce (.2695), Dennis Thornbury (.2714), Art Kawai (.2885), and Rich Shaw (.3016). Winners of the Class Grand Aggs were Dennis Thornbury (HV .2424), Lester Bruno (LV .2400), and Keith Cottrell (Sporter .2395). CLICK HERE for full Match Results.
Equipment List for Top Five Shooters
You can use a LabRadar during competition. This was Lawrence Weisdorn’s set-up at Visalia.
Benchrest Technique — How to Shoot at Visalia
This range is built a bit like a large bathtub, dug into a flat field with the excavated earth thrown up in steep berms on three sides. This configuration and the usual lack of strong winds creates a lot of thermal-generated switchiness with flags changing direction often and very little agreement within any shooter’s set. This places a high premium on visual memory and the ability to judge equivalent conditions, because duplicates are almost never seen. Although the opportunity to run groups can happen, this is mostly a “pickers” range, which places a high premium on visual memory.
Facilities at Visalia Sportsman’s Association Range
There are 28 monolithic, steel-reinforced, concrete benches (poured in place, base and top all one pour). The reloading area is behind the benches with most of it on the same level as the benches. There are permanent (fixed position) tables that have laminate tops, except for where the range house sits, mid-range, with a “wailing wall” along its east and north sides. The direction of fire is north. The benches are under a slightly pitched metal roof that has recently been extended so that it has a good amount of overhang in front of the benches. Electricity is available in the reloading area and there are a few electrical outlets in the parking lot for RVs. There are both steps and a wheelchair ramp connecting parking lot to the reloading level and the shooting level.
Field of (Benchrest) Dreams — Precision Shooting Among the California Corn Fields.
Think you need a relatively long case-neck for good accuracy? Think again. Stan Ware broke all the rules with his radical Wolfpup cartridge, proving that a near-no-neck design can deliver match-winning accuracy. Read on to learn how the Wolfpup works…
Retired gunsmith Stan Ware is a talented shooter who’s not afraid to think “outside the box”. Stan competes in both Hunter Benchrest (HBR) and Varmint for Score (VFS) disciplines. In his quest to build the ultimate Hunter Benchrest cartridge, Stan created the radical “Wolfpup” wildcat, based on a 6mmBR parent case. Noting the dominance of 30 BRs in VFS matches, Stan wondered if a stretched 30 BR could work in HBR competition. The challenge was case capacity. Under HBR rules the cartridge must hold at least 45.0 grains of water, equal to the capacity of the classic 30/30 case.
To get the requisite HBR case capacity, Stan figured he needed to boost the volume of a 30 BR case significantly, so he would have to move the shoulder forward — a lot. He did this by running a 30 BR reamer deeper and deeper, test-firing brass along the way. After three reamer passes, he ended up with the capacity he needed (the Wolfpup holds 45.3 grains of water). But then he looked at the finished product — a case with almost no neck, and he wondered “how could this possibly work?”.
From Trashbin to Winner’s Circle
Ware’s prototype Wolfpup ended up so short-necked, so unlike any “normal” cartridge, that Stan figured it was “dead on arrival”. Stan told us: “I said ‘this ain’t going to work’ and I threw the brass in the trash can. Honest. But later I thought I better shoot it and see what it does.” There was one problem — Stan didn’t have a seating die. He noticed the short neck provided a bit of tension after fire-forming, so he literally seated some bullets, BIB 118s and 125s, with his fingers. For powder he used H4198 and started with 35 grains, one grain more than a 30 BR load. Stan then did a pressure work-up: “I actually went up to 41.0 grains and didn’t have a sticky bolt. I ended up at 37.9 grains of Hodgdon 4198 — that gave 3150 fps, where the sweet spot is.” (Later testing revealed a second accuracy node at about 3020 fps, using 36.4 grains of H4198).
Stan’s radical short-necked Wolfpup shot great from the get-go. Once he found the right velocity node, the gun shot in the ones and zeros with both 7-ogive and 10-ogive bullets, both 118s and 125s. The Wolfpup proved easy to tune — it’s not finicky at all. And it’s a winner. Stan began shooting the Wolfpup in 2006 in both VFS and HBR matches and the ‘Pup’ started winning matches right away. In 2007, Stan won the Wisconsin State VFS Championship shooting the Wolfpup. In June 2010 at a Webster City, Iowa VFS match, Stan won the Grand Agg and posted high X-Count for the match, while placing first at 100 yards and second at 200 yards. How’s that for a cartridge that almost ended up in the trash bin?
Does Stan deserve an award for “most innovative benchrest cartridge design”? Stan chuckles at that notion: “I’m not a hero, not a genius. I really didn’t do anything. The fun part is thinking outside the box — for me anyway. Shooting is an age-old process of experimentation. You never learn it all.”
Why Does It Work?
How can such a radical case design perform so well? “That’s a good question,” Stan admitted. He then explained: “The 30 BR is inherently accurate, so I figured something based on the 30 BR should be accurate too. My personal belief is that the short neck doesn’t hurt you. Plus if the throat in the barrel is straight, the bullet can self-align. If the chamber is good, the bullet will self-center in the throat. In a regular case there’s not much room to do that, so a bullet can start off-center, and you don’t get the same results every time. A bullet in a conventional case is stopped from self-centering by the stiffer neck, particularly in a tight-clearance BR gun.”
Reloading the .30 Wolfpup
Stan’s Wolfpup chamber has a neck dimension of 0.330″. He turns his necks for a 0.327″ loaded round. Bullets are jammed .020″ forward of first contact with the lands. When he closes the bolt it pushes the bullet back in the case — almost a soft seat. Stan notes: “To start with I normally bump the shoulder .0005-.001″ so they go in easy. Just by doing that I get a little neck tension. I also use a bushing. Right now I’m running a .322, but it’s not particularly sensitive. I’ve tried one-thousandths increments up to a .325 bushing and couldn’t tell a lot of difference.” For bullet seating, Stan uses a Wilson 30 BR seater die into which he ran the chamber reamer. This gives perfect case fit during seating operations.
About the Illustrated Gunstock
You’ll notice Stan’s stock contains scenes from Vietnam and a quotation. Here’s the story. A Vietnam combat veteran, Stan served “in-country” with the Army’s 509th Non-Divisional Combat Unit (out of Fort Riley) from 1965-1966. Shortly before he left Vietnam, Stan went to a shop to have a souvenir lighter engraved. He asked the vendor for an appropriate inscription. The shop’s metal-worker engraved: “War is a tragedy. It takes mans’ best to do mans’ worst.” That message, along with the combat scenes, were hand-painted on Stan’s rifle by his wife Susan, a talented artist. She spent more than 20 hours painting the rifle stock.
The IBS Groups Nationals has a 4-man team competition based on the HV Grand Aggregate results. The 2017 winning team was a “Murderer’s Row” consisting of Wayne Campbell, Billy Stevens, Bart Sauter, and Larry Costa. Each boasts Hall of Fame and/or multiple World Team accomplishments. Hamming it up in the background is HOF shooter Jack Neary.
2017 IBS Group Benchrest National Championships
Holton Gun & Bow Club, Holton, Michigan
August 14-19, 2017
Report by Jeff Stover, IBS President
This year the 2017 IBS Group Benchrest Championship was held at the Holton Gun & Bow Club, in Holton, Michigan. This is a pretty facility boasting an impressive firing line with forty (40) concrete benches. Monday morning in western Michigan saw the Heavy Bench (HB) shooters hauling their big railguns to the line. Hall of Fame and multiple World Team shooter Wayne Campbell shot a nice .1858 aggregate for five 10-shot groups. The only other “Teen Agg” was Iowa’s Dave Coots with a .1978. Wayne’s win foretold what was to come the rest of the week.
Wayne Campbell and Jeff Summers Put on a Show
On Tuesday, the bag guns came out for Light Varmint (LV) and Sporter (SP). Mr. Campbell maintained his mojo, shooting yet another “Teen Agg”. Wayne’s .1788 edged fellow HOF member Larry Costa’s .1854. The Light Varmint 100 was also contested on Tuesday. Peter Smith shot a very fine .1658 to beat out Canadian Bill Mitchell at .1960.
Wednesday was reserved for Heavy Varmint (HV) at 100 yards. Holton is Bob Scarbrough’s home range, but he can shoot “lights out” anywhere. Nevertheless, his .1518 had to be satisfying. Wayne Campbell, still on fire, laid down a .1694. In third place, Tennessean Jeff Summers posted a .1800. Mr. Summers is always near the top of any benchrest leader board. He is coming off another Super Shoot win. Most of the time Jeff does not win the small group of the day, but he wins many Aggregates. He is one of the most mistake-free shooters in the game.
File photo courtesy Holton Gun & Bow Club
Benchrest for Group Basics — Four Classes at Nationals
IBS group competition is contested at 100 and 200 yards. At the National Championships, it takes thirty targets of five shots each and ten targets of 10-shot groups to win a “4 Gun Nationals”. That includes four (4) gun classes: Light Varmint, Heavy Varmint, Sporter, and Unlimited. For all practical purposes, the first three are known as “bag guns” while the heavy bench rifles are “railguns”.
In fact, most competitors shooting a bag gun opt for a single rifle, which has been benchrest standard for decades: a 10.5-lb rifle chambered in 6PPC. This can compete in three classes: Sporter, Light Varmint, and Heavy Varmint. The fourth class shot at the Nationals is Unlimited (aka Heavy Benchrest or “HB”). This class features the big, heavy railguns — the most sophisticated Benchrest rigs of all which shoot 10-shot groups at 100 and 200 yards.
For the IBS Nationals, group-shooting competition features 100-yard targets for the first three days followed by three days at 200 yards. Six days total. It is done this way to require only one change of wind flags. Nationals competition requires “full rotation”. That means that every time a shooter goes to the line for the next match target, he or she must move a requisite number of benches to the right. At the end of the day a shooter will shoot across the full width of the line. Some ranges offer unique properties that render some parts of the range harder or easier to shoot small groups. Bench rotation is important to even out those factors.
Thursday was set for 200 yards. Starting off was Heavy Bench (HB), the big railguns. Upper Midwest shooter, Mark Buettgen shot steadily for a .2406 Agg, aided by a small .378. His largest group was a .527. Consistency wins bench matches. Lee Hachigian drove in from the Detroit area with his railgun to be next to the winner with a .2608.
On Friday, two Aggs were shot, Light Varmint and Sporter. Larry Costa nearly nicked a Teen Agg to win LV 200 with a .2027. Lurking high in the standings once again was Jeff Summers and his .2352. Wayne Campbell was not asleep. He was merely third at .2480. The Sporter competition was won by the best benchrest shooter of all time, Tony Boyer. Tony shot a .2287 to edge Billy Stevens. Mr. Boyer added another Hall of Fame point. His 170 points are 120 more than the next shooter (Lester Bruno, no slouch!) in the ranking.
Benchrest legend Tony Boyer added another Hall of Fame point to his amazing total. (File photo from 2016 IBS Group Nationals in Weikert, PA)
The HV guns came out to contest 200 yards on the last day of the Nationals. Jeff Summers worked a .1868 to the winner’s circle. The always tough Larry Costa was close at .1929.
At the IBS Group Nationals, shooters compete for Grand Aggregate (100+200) honors in four classes: LV, HV, Sporter, and HB. In addition, there are multi-gun titles: 2-Gun (all HV and LV targets in 100 & 200); 3-gun (all HV, LV, SP in 100 & 200), and 4-gun (all HV, LV, SP and Heavy Benchrest in 100 & 200).
The Grand Aggregate (100+200) winners were:
Heavy Varmint: Bob Scarbrough, Jr. (.1824)
Light Varmint: Jeff Summers (.2313)
Sporter: Wayne Campbell (.2119)
Heavy Bench: Lee Hachigian (.2374)
In the prestigious multi-gun competition, Jeff Summers won the 2-Gun. Wayne Campbell added more HOF points by winning BOTH the 3-Gun AND the 4-Gun. With his impressive 3-Gun and 4-Gun victories, the talented Mr. Campbell claimed the title of Top Overall shooter after six days of trigger-pulling.
2017 IBS Nationals Powderpuff Exhibition Shoot
For decades, IBS hosts an exhibition shoot on the afternoon of a day when only one Aggregate is contested instead of two. It is called the Powderpuff and is intended to allow family members and others who do not shoot competitively to give benchrest shooting a try. Each shooter is assisted by a coach who instructs the shooter. World-class shooters such as Billy Stevens and Bob Scarbrough give their time and talents to assist the novice competitors. There is no time limit to rattle the inexperienced shooters.
File Photo from previous Powderpuff Event at 2015 IBS Group Nationals
The competition is financially supported by the IBS President’s Fund. This year, at Holton in Michigan, we had four youth and 11 adult competitors. Chris Jeffers won the adult category with a nice .204″ group, while Jake Henderson put his five shots into a .244″ to win the youth division. Congratulations to all the Powderpuff competitors — we hope this inspires them to get more involved in Benchrest shooting.
30 BR dies are readily available from a number of manufacturers. I personally use Wilson neck and seating dies with a Sinclair Arbor press, but Redding and Forster both supply high-quality threaded dies for use in a conventional press. For under $100.00 US, custom full-length dies can be obtained from Hornady and CH Tool & Die by sending them reamer prints or a couple of fired cases. Harrell’s Precision offers “semi-custom” dies. Just send them some fired cases and they select a pre-made CNC-cut die that ideally fits your chamber. You can ask the Harrell brothers for a die that’s tighter at the shoulder or base, or otherwise customized to your preferences.
Retired gunsmith Stan Ware is a talented shooter who’s not afraid to think “outside the box”. Stan competes in both Hunter Benchrest (HBR) and Varmint for Score (VFS) disciplines. In his quest to build the ultimate Hunter Benchrest cartridge, Stan created the radical “Wolfpup” wildcat, based on a 6mmBR parent case. Noting the dominance of 30 BRs in VFS matches, Stan wondered if a stretched 30 BR could work in HBR competition. The challenge was case capacity. Under HBR rules the cartridge must hold at least 45.0 grains of water, equal to the capacity of the classic 30/30 case.
From Trashbin to Winner’s Circle
Why Does It Work?
