Eurooptic vortex burris nightforce sale




teslong borescope digital camera barrel monitor


As an Amazon Associate, this site earns a commission from Amazon sales.









June 23rd, 2020

How to Form 30 BR Cases — Experts Explain Best Methods

30BR 30 BR case forming benchrest randy robinette al nyhus

30BR 30 BR case formingThe 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

Permalink Bullets, Brass, Ammo, Competition, Reloading, Tech Tip No Comments »
January 5th, 2019

Tack-Drivin’ Wildcat — 6.5 Grendel Necked UP to .30 Caliber

30 Major 6.5 Grendel 30 caliber PPC

Sometimes everything comes together — a great barrel, the right load, good bullets, and, of course, a gifted trigger-puller. Check out this target from Forum member Mike Ezell. That’s five (5) shots at 100 yards from Mike’s 30 Major benchrest rifle. When this group was shot a while back, Mike reported: “I fired a few groups in the great weather. No surprises — it did VERY well! My little wildcat, the 30 Major, has always been a shooter. That target was not a fluke — I shot a few groups today and Agg’d a high One.” Mike is a Kentucky gunsmith who builds his own rifles.

30 Major is Based on 6.5 Grendel

What’s a “30 Major” you ask? This is Mike’s own wildcat, a 6.5 Grendel necked up to .30 caliber. Mike writes: “The 30 Major is essentially a .070″-long 30 PPC. With the great 6.5 Grendel brass available from Lapua, all you need to do is neck-up and turn the necks to prep the brass.” Mike says it is very much like a 30 BR, but you just start with 6.5 Grendel brass instead of 6mmBR brass.

The cartridge has one major benefit — it utilizes a PPC-diameter bolt face. That makes it easy to convert your group-shooting 6 PPC to shoot score with .30-cal bullets. Mike explains: “If you have a PPC, to shoot score, all you have to do is chamber up a [.30 caliber] barrel and screw it on your PPC.”

From 7.62×39 Russian to 30 Major — Full Circle

Arms expert Neil Gibson has an interesting perspective on the lineage of the 30 Major. He reminds us that this wildcat has returned to its roots: “Start off with the 7.62×39 Russian [cartridge]. The Russians then modify it, necking it down to .223 for deer hunting. The U.S. benchrest guys then modify that, necking it up to 6mm and blowing the case out making the 6mm PPC. Someone takes that case, necks it out to 6.5 mm, making the 6.5 PPC. Alexander Arms takes that and makes the 6.5 Grendel. Then finally Mike Ezell takes the Grendel and necks it up to 30 caliber, making the 30 Major. From 30 caliber, back to 30 caliber. OK, the original uses .31 caliber bullets, but the bore is still .300. Talk about almost coming round full circle!”

7.62×39 Russian
v
.220 Russian
v
6mm PPC
v
6.5 PPC
v
6.5 Grendel
v
30 Major

The 7.62×39 Russian was the Grand-Daddy of the 30 Major…
7.62x39 Russian Kalashnikov 30 Major 6.5 Grendel

Great Accuracy Restored after Solving Mystery Problem
To get his 30 Major rig shooting this well, Mike had to solve a mysterious problem that cropped up last year. Mike explains: “Two years running, I have finished in the top 15 in IBS points shooting [the 30 Major], but last year’s benchrest season was tough.” Mike was having some accuracy issues that defied explanation. But he figured it out: “The front action screw was bottoming out against the barrel extension – just barely. A simple fix brought the gun back to life. It’s a Stiller Viper Drop Port. The action is screwed and glued into the stock, so I was a bit surprised … especially after having checked for [that issue] while looking for the problem. I’m just glad to have found the trouble so I can begin to re-instill some confidence in the gun and myself, after last year.”

Permalink Bullets, Brass, Ammo, Competition 7 Comments »
March 3rd, 2018

Thunder for Down-Under — Twin 30 BR Score Benchrest Rigs

30BR Hunter Class Rifle
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.

30BR Hunter Class Rifle

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.

30BR Hunter Class Rifle

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.

30 BR cartridge

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

Sinclair Neck Micrometer, 30 BR Neck Turning
A Sinclair case neck micrometer indicates neck thickness of 0.010″ after neck turning.

Sinclair Neck Micrometer, 30 BR Neck Turning30 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.

READ FULL Story on AccurateShooter.com Main Site »

Permalink Bullets, Brass, Ammo, Competition No Comments »
June 30th, 2017

IBS Match Report: Bud Pryor Memorial 100/200/300 Score Shoot

Bud Pryor Memorial Benchrest 30BR Score Shoot Match Thurmont Frederick Sportsman's Club Maryland IBS MD

23rd Annual Bud Pryor Memorial Match, June 10-11, 2017
Match Report by Josh Shrum
For 23 years now, Benchrest Score shooters have flocked to the Thurmont Conservation & Sportsman’s Club outside of Frederick, Maryland for “The Bud”. This year, competitors from as far south as Georgia and as far north as Vermont came to try their hand against the always-challenging conditions of “The Bud”. Traditionally held in mid-June’s tricky conditions, the Bud Pryor Memorial is an event to challenge even the most skilled Benchrest competitor.

Bud Pryor Memorial Benchrest 30BR Score Shoot Match Thurmont Frederick Sportsman's Club Maryland IBS MD

Day One started with the 100-Yard Aggregate, which pretty much set the tone for what was to come all weekend long. Of the 33 shooters competing in the Varmint For Score (VFS) class, thirteen shooters dropped at least one point at 100 yards. “The Bud” had begun.

100-Yard Winner Wayne France
Bud Pryor Memorial Benchrest 30BR Score Shoot Match Thurmont Frederick Sportsman's Club Maryland IBS MD

By the end of the 100-Yard Agg, five competitors finished with top scores of 250-21X, with Wayne France taking the win under Creedmoor tie-breaker rules. Wayne would continue to shoot well for the entire weekend, finishing in the Top 10 at 200 and taking second (by Creedmoor) at 300, shooting his Lederer-barreled BAT in a Dixie stock. Wayne does his own gunsmithing, makes his own bullets, and shoots his own cartridge design. He is truly a “Do-It-Yourselfer”.

200-Yard winner Ronnie Milford checking conditions…
Bud Pryor Memorial Benchrest 30BR Score Shoot Match Thurmont Frederick Sportsman's Club Maryland IBS MD

Ronnie Rocks at 200, with an Impressive X-Count
Georgia shooter Ronnie Milford won the 200-Yard Agg with an impressive 250-13X. Ronnie was one of only six shooters to finish “clean” at 200, as traditional Bud weather was punishing even the smallest errors in judgment by shooters. Built by gunsmith Doyle Anglin, Ronnie’s Lederer-barreled Panda beat the field at 200 yards by three Xs, a significant margin. The next three shooters (places 2-4 at 200 yards) all shot 250-10X. Interestingly, Ronnie was shooting Accurate LT-30 powder, not the more widely used Hodgdon H4198 or Vihtavuori N130.

Of special note, Mrs. Carol Grosbier came on Saturday to visit during the match. Nearly every single shooter there stopped by to visit and offer their condolences on the passing of her husband Dick Grosbier, former IBS Vice President and Webmaster. It was great to see Carol and everyone’s actions showed just how great of a community of shooters the sport of Benchrest has.

The longest challenge, the 300-Yard Agg, was shot on Day Two. While conditions were not quite as “tough” as the previous day, they were anything but forgiving. High heat and gusting winds kept shooters on their toes as they strove for victory at 300 yards. A mere seven shooters would manage to stay clean through the first match, and only Maryland shooter Dewey Hancock managed to stay clean through Match Two. Dewey would go on to win the 300-Yard Agg shooting a 248-3X, beating 100-Yard winner Wayne France by Creedmoor and edging out Joey Whittington’s score of 248-2X. Dewey’s Goodling-built rifle uses a BAT action, Krieger barrel, and sits in a beautiful Roy Hunter stock.

Bud Pryor Memorial Benchrest 30BR Score Shoot Match Thurmont Frederick Sportsman's Club Maryland IBS MD

Dewey Hancock Wins with Strong Performances at 100, 200, and 300
Dewey Hancock’s excellent performance at 300, coupled with his second-place finish at 200 and his Top Ten finish at 100 put him on the throne. Hancock won the Grand Aggregate for the 23rd Annual Bud Pryor with a score of 748-31X. Just one point behind, Wayne France took second with a score of 747-31X. Joey Whittington took third with 746-35X.

Hunter Class was contested by both K.L Miller and Brian Fitch (Brian competed in both VFS and Hunter) with K.L Miller taking the Grand Aggregate in Hunter with a 723-11X while Brian posted a 717-11X. Mark Ukishima shot the events only Factory Class gun. It was great to have so many different classes contested at this year’s Bud Pryor.

Bud Pryor Memorial Benchrest Score Shoot Match Thurmont Maryland IBS MD

TOP 10 EQUIPMENT LIST:
Bud Pryor Memorial Benchrest 30BR Score Shoot Match Thurmont Frederick Sportsman's Club Maryland IBS MD

Bud Pryor Memorial Benchrest 30BR Score Shoot Match Thurmont Frederick Sportsman's Club Maryland IBS MD

Bud Pryor Memorial Benchrest 30BR Score Shoot Match Thurmont Frederick Sportsman's Club Maryland IBS MD

About the Bud Pryor Memorial Match
Bud Pryor Memorial Maryland Score Benchrest MatchBud Pryor was a fine gentleman who started shooting IBS matches in 1983. He was a machinest turned gunsmith who made friends and got many people started in shooting IBS registered matches over the next few years. Bud and Dick Grosbier ran the first IBS match at the Thurmont range in April 1983. CLICK HERE to see vintage photos of the 1983 match.

After Bud’s untimely passing a few years later, the club decided to put on a big match and dedicate it to him. As Thurmont is one of the few ranges around with 100/200/300 yard capabilities, we decided to put on a 3-yardage Grand Aggregate match. This was not as simple as it seems, since the three-yardage 100/200/300 was not an IBS-recognized Aggregate. After an agenda item was approved at an IBS winter meeting, 100/200/300 records were set at Thurmont. Over the years, most records have stayed at this scenic range. There are a total of four IBS ranges now holding 100/200/300 yard matches.

Permalink Competition, Shooting Skills No Comments »
January 13th, 2017

Perfection at the Core — Bullet Making Tips from BIB Bullets

Randy Robinett, founder of BIB Bullets, is a highly respected custom bullet-maker. In recent years, Randy’s 30-caliber projectiles have won countless benchrest-for-score matches, and captured many National titles. If you want to “run with the big dogs” in score competition, campaigning a 30BR with BIB bullets is a very smart way to go. In this article, Randy talks about the process of creating highly uniform cores for benchrest bullets.

This article originally started as an exchange of posts in Stan Ware’s Bench-Talk Forum. Stan, a gifted gunsmith, converted the Forum posts into an article, which first appeared on Stan’s Bench-Talk.com Website.

How to Make Benchrest-Quality Bullet Cores
by Randy Robinett, BIB Bullets

OK, Stan “made me do it”! A while back, Stan Ware asked if I’d submit a ditty on bullet-making. Here is the “picture is worth a few words” version. Below is a photo of a spool of lead wire. This is the first step in making benchrest-quality bullets. This spool of .250″ diameter lead wire will be cut into approximately 130 pieces, each about thirty inches long.

Robinett benchrest bullet spool lead BIB score 30 caliber

The Core Cutter
Here’s a really neat machine built by my Uncle and BIG MIKE. This is the core cutter. We made it using scrap steel and borrowed the crank shaft out of a 1966 Yamaha motorcycle to get the desired reciprocating-motion slide. When properly “juiced”, this machine can cut more than 3000 cores per hour.

As you doubtless deduced, the “sticks” are inserted, then fed via gravity — straightness is a virtue here! The crank, for now, is powered by the human hand. The bucket contents are the result of loading the cutter and turning the crank wheel. This photo shows cores for 112 grain, .30-caliber bullets. There are about 2500 cores to the bucket.

Robinett benchrest bullet spool lead BIB score 30 caliber

Here’s a close-up of the business end of the core cutter. Using recorded micrometer settings, this clever design allows us to get very repeatable length when changing through the length/weight cycle.

Robinett benchrest bullet spool lead BIB score 30 caliber

The photo below provides a closer look at the just-cut cores. Note the relatively clean shanks and square, unflared ends. This bucket contains roughly 2500 cores. By contrast, a tour of the Hornady plant will reveal cores being cut and squirted via a single operation, and deposited into 50-100 gallon livestock watering tanks!

Robinett benchrest bullet spool lead BIB score 30 caliber

Upon my first tour of a commercial plant, I lost all feelings of guilt about the cost of custom, hand-made bullets. When one totals the amount of labor, “feel” and “culling” that goes into them, custom hand-made bullets represent one of the best bargains on the planet!

At Hornady, each press produces 50-55,000 finished bullets per 10-hour shift. By contrast, a maker of hand-crafted bullets, at best, may make 3% of that number during a 10-hour span! Yep, hand-made benchrest-quality bullets are a labor of love and should be purchased with these criteria in mind: 1) QUALITY; 2) availability; 3) price. There is no reason for a maker of hand-made benchrest-quality bullets to negotiate on price. His time is worth what one receives from the bargain!

Core-Making Q & A
Randy’s original Bench-Talk Forum posts inspired some questions by Forum members. Here are Randy’s answers to spedific questions about core-making.

Question by Stan Ware: Randy, a post or two back you said the cores were cut into 30″ lengths first and straightened. Why do you cut to 30″ lengths? What is the reason for this?

Answer by Randy: Stan, the wire is cut into 30″ lengths (sticks) and then straightened, following which it is fed into the core cutter and cut into the individual individual “cores”. If you look at the core cutter photo above, you’ll see a stick of lead wire sticking up -it’s toward the right hand end of the contraption. The cut cores are also “ejected” by gravity — the white “tickler” brushes the cores as the slide moves forward and dislodges the core from the cutter bushing.

Q by GregP: Randy, How do you straighten the 30″ sticks? Roll them between metal plates?

Answer by Randy: Greg, BIG MIKE may kill me for letting out the secret. WE “roll” the wire between an aluminum plate, which is equipped with handles, and the “plate” which you can see in the pic of cutting the wire. The straightening is really a drag. Eventually, we will have the new cutter hooked up to a “feeder/straightener” and the wire will be cut into core slugs right off the roll! Well, that’s the Dream….

Question by Jim Saubier: How much of a nub do you use at the end of the 30″ section? I imagine that every section you will lose a little from the feed end. Your cutter looks real slick, we are using the manual deal and it isn’t quick by any means.

Answer by Randy: Jim, Since I cut all of the sticks using diagonal-cutting pliers, the ends are, indeed, waste. However, only about 1/8th inch on the beginning end — the final core may be too short. I have attached a pic of my old reliable CH cutter. I still use this cutter for .22-cal and 6mm cores and, occasionally, an odd lot of thirties. The CH cuts very square ends which are free of bulges and/or flaring.

Robinett benchrest bullet spool lead BIB score 30 caliber

Permalink - Articles, Bullets, Brass, Ammo 1 Comment »
December 13th, 2016

TECH TIP: Rebate Larger Case Rims to Shoot with PPC Actions

30BR 6 PPC rim rebated Butch Lambert

Many short-range Benchresters have thought about converting their 6 PPC to shoot a 30BR for score matches, or a Dasher for mid-range (or even 1000-yard) games. That way you have a rifle that does double duty, giving you the most bang for your buck. Though an action with a PPC bolt won’t normally work with 30BR/6BR/Dasher cases with their larger .308-class rim (0.4728″ diameter), there is a pretty easy solution that allows you to cycle these bigger cartridges with a 6PPC-style bolt (designed to fit .220 Russian rims).

“Rebating case rims … lets you shoot a 30BR in score matches using your PPC action. All you need is a new barrel. This saves buying another bolt, receiver, or rifle.” — Butch Lambert

Butch Lambert of ShadeTree Engineering provided this tip. Butch notes that many 6 PPC benchrest group shooters also enjoy shooting in score matches. But to be really competitive in the BR for score game, that means shooting a 30BR, which has a wider, .308-class rim (0.4728″ diameter). Likewise, if you want to compete in 600-yard registered BR events or in varmint matches, you probably want to run a bigger case, such as the 6BR, 6mm Dasher, or 6-6.5×47. Those cartridges also have the larger 0.4728″ rims.

30Br Butch Lambers 6 PPC

To convert a PPC-boltface action to shoot the bigger cases you can spend a ton of money and buy a new bolt. That can cost hundreds of dollars. The simpler solution is to turn down the diameter of the larger cases on a lathe. Butch explains: “We’ve seen plenty of interest in rebating case rims. This lets you shoot a 30BR in score matches using your PPC action. All you need is a new barrel. This saves buying another bolt, receiver, or rifle if you have a PPC boltface. Anyone who has access to a lathe can do this job pretty easily. Yesterday I turned 150 case in about an hour.” Below is the lathe form tool Butch uses to rebate the case rims.


Cutting Head for Rebating Rims

Permalink Bullets, Brass, Ammo, Gunsmithing, Tech Tip 2 Comments »
June 24th, 2016

Benchrest Perfection: New Awards for IBS Score Shooters

IBS Score Shooting Record 750 250 patch

For the International Benchrest Shooters (IBS) by Frank Danisienka
The IBS Executive Board has voted to create two new awards. These awards recognize the significant performance of a select number of shooters. Patches for Score shooting a perfect score of 750, and a perfect target of 250-25X, were designed by the board. To score 250, you need to shoot five (5) tens on each of the five record targets at a particular yardage. To score 750 you need to do that at all THREE yardages — 100, 200, and 300 yards. Certificates accompanying the patches document the commitment to excellence and dedication by these shooters to our sport.

Perfect 750 Multi-Yardage Score — A Rare Occurrence
In the long history of IBS competition only 16 members have shot a perfect score of 750 in one match! That’s 250 at 100 yards, 200 yards, and 300 yards. This very select group of shooters includes: Al Weaver, Rod Morton, Dave Short, Dennis Collins, Ken Livengood, Wayne Shaw, Dick Spencer, Hal Drake, Kim Llewellyn, Shaun Shank, Roy Hunter (2), Dean Breeden, John Bosley, Wayne France, Ricky Read and John Cascarino.

Dean Breeden is one of only 16 Shooters to have recorded a 750 total score in a match.
IBS Score Shooting Record 750 250 patch

All Xs — the Perfect Target, 250-25X
The remarkable feat of shooting a perfect 250-25X target has been accomplished 37 times by 26 members. They are: Dennis Collins (2), Ted Parreco, Jeff Buchannan, Carl Baker, James Goody, Joe Enterkin, Rich Whiteash, Dean Breeden (2), David Apple, Al Weaver, Rod Morton, Mike Bigelow, Ken Livengood (3), Roger Avery (2), Joe Pellegrene, Mark Ludinsky (3). Herb Llewellyn (2), Jackie Stogsdill, Hal Drake (2), Johnny Lorick, Ron Collins, Wayne France (2), Shaun Shank, Steve Jaynes, Kevin Donalds Jr., Randy Jarvais (2).

Our sport continues to evolve toward perfection both in the quality of the equipment and the skill of our members and these awards recognize them for their accomplishments.

IBS Score Shooting Record 750 250 patch

Permalink Competition, News No Comments »
June 21st, 2016

IBS Report: 22nd Annual Bud Pryor Memorial Score Match

Bud Pryor Memorial Maryland Score Benchrest Match

22nd Bud Pryor Memorial Match by Dick Grosbier
Saturday June 11th was the 148th running of the Belmont Stakes in New York, and the 22nd running of the Bud Pryor Memorial Match at Thurmont, Maryland. Since this is a shooting website, I will be writing about the “Bud”. This year’s offering was a two-day match with 100-yard and 200-yard relays on Saturday followed by the 300-yard match on Sunday. This was a return to the format used from 1994 until we started having to turn shooters away in 2004.

Bud Pryor Memorial Maryland Score Benchrest Match

It was typical “Bud” weather — hot well into the mid-90s on Saturday. Sunday was considerably cooler and with extremely challenging wind conditions all day long. There was no rain on Saturday but a big threat of a thunderstorm on Sunday. Luckily the thunderstorm held off as the shooters had their hands full just dealing with the high winds.

CLICK HERE for Spreadsheet with 2016 Bud Pryor Match Results

Wayne Lewis from South Carolina took the early lead in Varmint For Score (VFS) class, by winning the 100-yard stage with a fine 250-23X score. Wayne France, Dave Short, and Jim Cline were right behind him with 21X each. K.L. Miller won the 100-yard event in Hunter class with a 250-16X Score. Millers’s score with his 6X power-scoped rifle would have put him in the top half of VFS class. That’s impressive shooting with a low-power optic.

Bud Pryor Memorial Maryland Score Benchrest Match

Pennsylvania shooter Dave Short won the 200-yard VFS with a 250-8X. Paul Bielec took second place honors with a 249-4X. Unfortunately Paul had a misstep at 100 yards on the final match. Cross-firing onto the target of the empty bench to his right and incurring a 5-point penalty marred his otherwise excellent performance for the weekend. Paul’s situation left Dave Short as the only shooter who was not at least two points down going into the 300-yard section on Sunday. Meanwhile in Hunter Class, K.L. Miller trudged along, beating second-place Orland Bunker with a 243-0X to Orland’s 241-6X.

Bud Pryor Memorial Maryland Score Benchrest Match
Here are some of the top shooters. Left to Right: Richard Sissel (300-yard VFS Winner), K.L. Miller (Hunter 1st Grand Agg), Hillary Martinez (3rd VFS Grand Agg), Dan Breedan (2nd VFS Grand Agg).

EQUIPMENT Report:
Notably, the top three shooters all used Vihtavuori N130 powder, not Hodgdon H4198, the “go-to” choice for the 30BR for many years. Could this start a trend? Federal 205m primers were used by nearly all, and BAT actions were favored by the majority of competitors. Most of the Top 20 barrels were Kriegers, but Brux barrels took the number two and three spots overall. There were mostly high-end March and Nightforce scopes on the line, but overall winner Dave Short ran a 36X Weaver, proving you don’t need to spend two grand on a scope to win a big match.

Bud Pryor Memorial Shoot Equipment List (Listed in Order of Grand Agg Score)
Bud Pryor Memorial Maryland Score Benchrest Match
Click Chart to View larger, easier-to-read complete Equipment List

Sunday was the 300-yard stage, this is always the big equalizer in a 100/200/300 match. As previously mentioned, conditions were unusually challenging Sunday. This was demonstrated by the fact that Richard Sissel won the Aggregate with a 243-3X. Dave Short was a close 2nd with a 243-2X. Dean Breeden & Michael Clayton also turned in 243s; after that the scores fell off fairly fast. Back in Hunter Class once again K.L. Miller finished on top with a 238-1X. Scott Garman from Maine turned in a nice performance with a 236-3X.

Bud Pryor Memorial Maryland Score Benchrest Match

Grand Aggregate Results — Dave Short Wins Over Runner-Up Breeden
When all the scores were totaled, Dave Short easily won the VFS Grand Aggregate with a 743-31X, Dean Breeden was 2nd with 741-27X, Hillary Martinez 3rd with 739-31X, and 100-yard winner Wayne Lewis was 4th with 739-29X. It looked like Wayne had a second-place finish in he grand until the last target of the day when instead of dropping 1 point per target as he had been doing all day, he dropped 5 points moving him to sixth place. In the Hunter Class, K.L. Miller led the entire weekend. Miller’s 731-17X Grand Agg Score put a substantial distance between himself and second-place Orland Bunker.

Bud Pryor Memorial Maryland Score Benchrest Match
File photo from 2014 Bud Pryor match.

All in all I think everybody had a good time (some better than others) and I believe most will be seen back in Maryland the second weekend in June 2017 for the 23rd Annual Bud Pryor Memorial. Unless perhaps they go to New York for a horse race.

About the Bud Pryor Memorial Match
Bud Pryor Memorial Maryland Score Benchrest MatchBud Pryor was a fine gentleman who started shooting IBS matches in 1983. He was a machinest turned gunsmith who made friends and got many people started in shooting IBS registered matches over the next few years. Bud and Dick Grosbier ran the first IBS match at the Thurmont range in April 1983. CLICK HERE to see vintage photos of the 1983 match.

After Bud’s untimely passing a few years later, the club decided to put on a big match and dedicate it to him. As Thurmont is one of the few ranges around with 100/200/300 yard capabilities, we decided to put on a 3-yardage Grand Aggregate match. This was not as simple as it seems, since 100/200/300 was not an IBS-recognized Aggregate. After an agenda item was approved at an IBS winter meeting, 100/200/300 records were set at Thurmont. Over the years most records have stayed at this scenic range. There are a total of four IBS ranges now holding 100/200/300 yard matches in 2014.

Permalink Competition, News No Comments »
March 14th, 2016

New Equalizer Scoring Reticle for Score Matches

VFS Scoring Reticle

No doubt you’ve heard the term “reticle” before, but it probably brings to mind the cross-hair you see through a rifle-scope. This term “reticle” can also describe an optical aid used to score targets. This story discusses a new scoring reticle with precisely-defined circles etched on clear plexiglass. This scoring reticle (as attached to a magnifying crystal) is used to determine whether bullet holes fall inside or outside the scoring circles on targets. This unique new scoring reticle allows match scorers to “equalize” the shot placements of all popular calibers from .204 up to .308. This way, there’s a “level playing field” for all calibers, and any caliber rifle can compete on an equal basis with the 30s.

New ‘Equalizer’ VFS Scoring Reticle

by Ron Goodger
The ubiquitous controversy over the advantage of larger caliber bullets in VFS (Varmint for Score) matches still rages, but there is a simple solution that is being embraced by all to whom I have shown it. The concept is simple, and it accomplishes the same thing the UBR (Ultimate Benchrest) targets do with the advantage that it can be used on any target a club happens to have on hand.

I had heard shooters complain about the advantage that larger calibers have many times and wish there was a fair way to score targets that would level the playing field for all calibers. The UBR concept came along and I read up on it. When a match was held close enough that I could enter, I did so and observed first hand what it was all about. The UBR targets essentially make the distance from the bullet hole center to the scoring ring edge the same for each caliber by using different-sized rings on the caliber-specific targets. After seeing the accompanying disadvantages of using this method (the chief one being the large number of targets required by UBR rules and the resulting increased time required to hold a match), I began searching for a simpler way to accomplish the same thing. I was aware of a number of mid-West clubs wanting to make scoring fair but unwilling to use the UBR method because of the disadvantages.

VFS Scoring Reticle

I came up with an idea late in 2015 and designed a scoring reticle that would do the job. The following diagrams graphically explain how UBR and my scoring reticle accomplish the same thing. The illustration above shows how different caliber bullets hitting the same center point of impact will each just score the 10 ring edge on the different-sized, caliber-specific UBR 10 Rings . It is clear that it is the distance from the center of the bullet to the scoring ring that is made uniform by the different 10 Ring sizes.

VFS Scoring Reticle

The illustration below shows how my VFS scoring reticle accomplishes the same thing by scoring every shot with an .308-equivalent ring that circumscribes the inner caliber-specific ring. The dotted line shows that the center of each bullet hits the same distance from the edge of the scoring ring. It is clear that, using current VFS scoring techniques, the .224, .243, and .257 bullets would score misses. However, scoring each bullet with the .308 ring around the hole illustrates that all calibers would be scored the same.

Scoring Reticle Converts Any Caliber Shot to a .308-Equivalent Hole
VFS Scoring Reticle

The above photo of an IBS 100-yard target has a 6mm hole that is clearly a nine (9), using current scoring methods. But consider that, if a .308 bullet from a 30 BR hit in the very same location, that .30-caliber shot would score in the Ten Ring. Why should the 6mm bullet, whose center was just as close to the middle of the target, be penalized because of the bullet diameter? The image on the right shows the scoring reticle with the 6mm scoring ring centered on this hole. With this scoring reticle, the .308 ring around the 6mm hole clearly scores the 10 Ring, just as a 30-caliber bullet centered in the same spot would do. That is as fair as it can get.

VFS Scoring Reticle

The above image (two shots per frame) from a Hillsdale Michigan varmint target has two 6mm holes that scored a 16. Score values are 10 points for a shot in the white, 5 points for a shot in the orange, and 1 point for hitting the center dot. This was a match that had 30BRs shooting in it. The next photo shows how scoring this frame with the VFS reticle would have resulted in a 21 because the left side of the reticle’s .308 circle just extends into the 10-point white bulls-eye region. So, in effect, there were two (2) shots in the white for 2×10 points (based on the .308 equalizer effect of the reticle). This shows how the reticle will level the VFS playing field regardless of what target is being used.

VFS Scoring Reticle Features and Specifications
The 6mm circles have been placed in the center of the reticle because it is expected to be the most commonly-used caliber, and that makes it easier to see in the crystal. Any of the ring sets can be used for a .308. The sizes of the circles are guaranteed accurate to within .001″ on the outside edge of the circle by the reticle’s manufacturer. I have found the best magnifier crystal to use is a genuine Badash crystal that measures 3.25″ in diameter. They are available from several eBay sellers and are easily attached using a piece of packing tape about 3/4-inch wide around the edge of the reticle (visible on the crystal in the lower part of the photo). That makes the Plexiglas reticles easy to replace in the event they become scratched up from frequent use.

A number of Midwest rifle clubs have already purchased these scoring reticles. The Plexiglas reticles are available for $15.00 each plus $2.04 shipping from the author (does not include the crystal). Email him at LRGoodger [at] gmail dot com for more information.

Permalink Competition, New Product, Optics 7 Comments »
December 17th, 2015

Shoot BR Cases from Your PPC Action with Rebated Rims

Butch Lambert of ShadeTree Engineering provided this tip. Butch notes that many 6 PPC benchrest group shooters also enjoy shooting in score matches. But to be really competitive in the BR for score game, that means shooting a 30BR, which has a wider, .308-class rim (0.4728″ diameter). Likewise, if you want to compete in 600-yard registered BR events or in varmint matches, you probably want to run a bigger case, such as the 6BR, 6mm Dasher, or 6-6.5×47. Those cartridges also have the larger 0.4728″ rims.

To convert a PPC-boltface action to shoot the bigger cases you can spend a ton of money and buy a new bolt. That can cost hundreds of dollars. The simpler solution is to turn down the diameter of the larger cases on a lathe. Butch explains: “We’ve seen plenty of interest in rebating case rims. This lets you shoot a 30BR in score matches using your PPC action. All you need is a new barrel. This saves buying another bolt, receiver, or rifle if you have a PPC boltface. Anyone who has access to a lathe can do this job pretty easily. Yesterday I turned 150 case in about an hour.” Below are photos of a rebated 6BR case, along with the lathe form tool Butch uses to rebate the case rims.

Cutting Head for Rebating Rims

Permalink Gunsmithing, Tech Tip 7 Comments »