Eurooptic vortex burris nightforce sale




teslong borescope digital camera barrel monitor


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









February 28th, 2021

Experiment with Fore and Aft Rifle Position on Rest and Bag

Benchrest stock

To get the best accuracy out of any benchrest rifle, you need to find the optimal position of front rest and rear bag. The important point to remember is that each rig is different. One gun may perform best with the front rest right at the tip of the forearm (Position ‘D’ in photo), while another gun will work best with the rest positioned much further back. This Editor’s own 6mmBR rifle has a laminated stock that is pretty flexy in the front. It shoots best with the front rest’s sandbag located a good 6″ back from the forearm tip (position ‘A’).

Here’s some benchrest advice that can help you reduce vertical and shoot tighter groups… without spending another penny. Many benchrest shooters spend a fortune on equipment and devote countless hours to meticulous handloading, but they never experiment with their rifle’s position/balance on the bags. This article explains why you should test your rifle in various positions. What you learn may surprise you (and improve your scores).

Next time you go to the range, experiment with the position of your rifle on the front rest, and try a couple different positions for the rear bag. You may find that the rifle handles much better after you’ve made a small change in the placement of your gun on the bags. Recoil can be tamed a bit, and tracking can improve significantly, if you optimize the front rest and rear bag positioning.

front rest Sally benchrest IBS
This competitor has the front rest positioned fairly far forward but not all the way out. Note the stop on the front rest — this limits forward stock travel.

A small change in the position of the forearm on the front rest, or in the placement of the rear bag, can make a big difference in how your gun performs.

Balance Your Gun BEFORE You Spend Hours Tuning Loads
In the pursuit of ultimate accuracy, shooters may spend countless hours on brass prep, bullet selection, and load tuning. Yet the same shooters may pay little attention to how their gun is set-up on the bags. When you have acquired a new rifle, you should do some basic experimentation to find the optimal position for the forearm on the front rest, and the best position for the rear bag. Small changes can make a big difference.

Joel Kendrick

Joel Kendrick, past IBS 600-yard Shooter of the Year, has observed that by adjusting forearm position on the front rest, he can tune out vertical. He has one carbon-fiber-reinforced stock that is extremely rigid. When it was placed with the front rest right under the very tip of the forearm, the gun tended to hop, creating vertical. By sliding the whole gun forward (with more forearm overhang ahead of the front sandbag), he was able to get the whole rig to settle down. That resulted in less vertical dispersion, and the gun tracked much better.

stock position benchrest forearm sandbag front rest
Fore/aft stock position is important even with very wide fore-ends.

Likewise, the placement of the rear bag is very important. Many shooters, by default, will simply place the rear bag the same distance from the front rest with all their guns. In fact, different stocks and different calibers will NOT behave the same. By moving the rear bag forward and aft, you can adjust the rifle’s overall balance and this can improve the tracking significantly. One of our shooters had a Savage 6BR F-Class rifle. By default he had his rear bag set almost all the way at the end of the buttstock. When he slid the rear bag a couple inches forward the gun tracked much better. He immediately noticed that the gun returned to point of aim better (crosshairs would stay on target from shot to shot), AND the gun torqued (twisted) less. The difference was quite noticeable.

A small change in the position of the forearm on the front rest, or in the placement of the rear bag, can make a big difference in how your gun performs. You should experiment with the forearm placement, trying different positions on the front rest. Likewise, you can move the rear bag back and forth a few inches. Once you establish the optimal positions of front rest and rear bag, you should find that your gun tracks better and returns to battery more reliably. You may then discover that the gun shoots smaller groups, with less vertical dispersion. And all these benefits are possible without purchasing any expensive new gear.

Rifle photo courtesy Johnson’s Precision Gunsmithing (Bakersfield, CA).

Permalink - Articles, Competition, Shooting Skills 2 Comments »
September 27th, 2020

Sunday GunDay: Shelley Davidson’s Amazing “Tinker Toy” 30 BR

Shelly Davidson Tinker Toy 30 BR

Editor’s NOTE: Shelley Davidson passed away in 2008 after a courageous battle with cancer. He was one of the great innovators in benchrest rifle design. This article, written before Shelley died, showcases Shelley’s creative talents at their best. His “Tinker Toy” design will always be a tribute to Shelley’s fabricating skills and imagination.


Shelley Davidson — a brilliant innovator. R.I.P. Shelley — you will not be forgotten.

Shelley Davidson’s peers called his radical rifle the “Tinker Toy” gun. We call it revolutionary. Even now, 14 years after its creation, there’s nothing quite like it. This innovative, skeleton design threw conventional wisdom to the winds. Shelley readily concedes he “broke the rules” of benchrest rifle building. But this was inspired rule-breaking, because Davidson’s rifle shot like a house on fire. The Tinker Toy gun won its first matches, both for Score AND for Group. And this rifle also delivered many “zero groups” in Gene Begg’s Texas Tunnel. Hats off to Shelley for conceiving and building a truly radical rifle that was also wicked accurate and successful in competition.

tinker toy davidson 20 BR benchrest rifle

Tinker Toy 30 BR — Radical As It Gets

Report by Shelley Davidson
Although I’m not big on naming rifles, my shooting buddies have christened the gun “Tinker Toy.” I can live with that as it does kind of look as if it was made with a Tinker Toy set.

Origins of the Project
This project began with some wild ideas I had in the fall of 2006 about using magnets to tune a barrel. My idea was to use one magnet on the barrel and another on the stock so they pushed against each other to counter gravity-induced barrel sag (and possibly) tame barrel vibration in a beneficial manner. The only way to test these ideas was to build the device and mount it on a gun. That meant I had to build a new rifle because there was no place to mount a magnet on the stock of a conventional benchrest rig. I had a Kelbly-stocked heavy varmint stock with a Michael Kavanaugh paint job on it. I didn’t think Kav would ever forgive me if I started drilling holes in one of his works of art. My light varmint was in a carbon fiber Scoville stock that costs about a grand. Drilling into the Scoville for an experiment just smacked of bad judgment. So, the magnet thing was my first motivation for designing a new stock. As long as I was building from scratch I decided to offset the barrel and action 0.75″ to the right to counteract the spin/torque from the bullet.

Although there’s nothing new here, my second motivation was to build a 30BR that could shoot in the 10.5 lb light varmint class in NBRSA. The magnetic tuner will automatically make this gun illegal in the IBS. The IBS has declared all barrel attachments un-safe and have outlawed them. I personally feel that the IBS really outlawed all barrel attachments to prevent experimentation and innovation. But at least we have NBRSA matches.

Designing the New Gun — Thinking “Outside the Box”
Once I’d decided to build a lightweight stock that could support experimental devices out near the muzzle, I started drawing up some rough plans. I also took a trip to Jerry Stiller’s shop in Wylie, Texas for a brainstorming session with Jerry, the maker of Viper and other Benchrest actions. Jerry is a school-trained mechanical engineer and thinks differently than I do. I came away from Stiller’s shop with my design roughed out and sketched on paper. The design violated several covenants of conventional wisdom for building competition BR rifles. For instance, two-piece stocks stress the action. Stress reduction is why most BR rifles are glued into the stock. Another myth is that metal stocks vibrate too much so wood or foam-filled fiberglass or carbon fiber are used.

Tinker Toy Rifle DESIGN FEATURES

Shelly Davidson’s Rifle was so innovative, that almost every feature, except the bare action, is very different than you’ll find on most Benchrest rigs. Accordingly we felt it would be useful to isolate and describe the key design features, from stem to stern. Click thumbnails to view FULL-SIZE PHOTOS.

Front Bracket with Magnetic Tuner
The tuner consists of one rare earth magnet attached to the stock and another attached to a barrel sleeve with the magnets oriented so as to make the magnetic force repel each other. The purpose is to counter “barrel droop” and, hopefully, dampen barrel vibration. The lower magnet is carried on a threaded shaft (with lock ring), allowing the magnet to be raised up and down to adjust the “up push” on the barrel.

Tubular Fore-Arm Supported by Brackets
Three brackets support two tubes, one on either side of the barrel. The rear-most bracket is sandwiched between the barrel and the action. Four inches forward (max distance allowed for barrel blocks) a second bracket grips the barrel. Near the muzzle a third bracket secures the ends of the tubes and holds the magnetic tuner. To allow barrel offset, the left tube is 1″ diameter tube while the right tube is 5/8″ diameter.

Offset Barrel
The rifle rests on a 3″ wide plate attached to the underside of the two fore-end tubes. With the plate centered in the front sandbag, the barreled action is actually offset 0.75″ to the right (looking forward from the breech). The purpose of this offset is to keep more weight on the right side to counter the tendency of the rifle to torque counter-clockwise. Two different diameter tubes allow for the built-in offset.

Floating Action without Sub-Support or Bedding
On the Tinker Toy gun, the action serves as a load-bearing assembly, holding the barrel in the front, and the skeleton buttstock (or “keel”) in the rear. Shelley was told that accuracy would suffer if you stressed a benchrest action in this manner but that proved untrue. It is a very simple solution to building a rifle, and it eliminates the need to bed the action. The forearm attaches to the action via a bracket installed like a recoil lug.

Skeleton Rear “Keel” Affixed Directly to Action
Davidson’s Tinker Toy does not have a conventional rear buttstock. Instead there is low-profile, v-shaped metal “keel”, as Davidson calls it, that rides the rear bag. The keel is supported by a tubular backbone that attaches at the rear of the Diamondback action. At the butt end is an aluminum plate covered with bubble wrap that serves as a butt pad. The skeletonized rear section helps the rifle maintain a very low center of gravity.

Locked Scope with External Windage and Elevation Adjustment
Shelley ran an older Leupold 36X Benchrest Scope with front-adjusting objective. To eliminate slop or loose tolerances in the erector mechanism that could cause changes in point of impact, the internals have been locked up by Jackie Schmidt. To move the cross-hairs relative to the bore axis, Shelley has a special Jewell/Foster rear ring that allows a limited amount of lateral and vertical movement of the entire scope body.

TINKER TOY SPECIFICATIONS

Action: Stiller SS Diamondback Drop-Port (1/2″ short), with .308 Bolt Face.
Barrel: Shilen .308 caliber, 17-twist, HV.
Chambering: 30BR, .330″ neck, Pacific Tool & Gauge Robinett Reamer.
Stock: Davidson Custom Tubular Stock with 0.75″ Offset Barreled Action.
Tube Construction: 6061 Aluminum, 1″ diameter (left), 5/8″ diameter (right).
Load: H4198 powder and 118gr Ronnie Cheek bullets. Loaded to 2980 fps.
Trigger: Jewell, 2 ounce BR.
Tuner: Custom, Adjustable with Opposing Magnets.
Optics: Leupold 36X (locked by J. Schmidt).
Rings: Jewell Foster External Adjusting Rings.

Stiller Diamondback Action and Shilen 17-Twist Barrel
I had wanted to use an aluminum Stiller Cobra drop port with a 6mmBR bolt face but Jerry had none in stock and he estimated it would be a year before one was available. Although I’ve waited for up to a year for an action in the past, I wanted to build this rifle during the fall of 2006 while the weather was pleasant enough to work in my unheated and un-air-conditioned garage shop. Jerry did have a 1/2″ short stainless steel Diamondback in stock so I purchased it even though it would add 3 ounces to the gun compared to the aluminum Cobra. Three ounces is a lot of weight when you’re working with a 10.5-lb limit. I had a heavy varmint contour Shilen 17-twist barrel that would work nicely and I had a Jewell trigger on a rifle that I wasn’t using at the time. I also decided to use my Leupold 36X (locked-up by Jackie Schmidt) with the Jewell/Foster adjustable rings.

Building the Tube Fore-Arm and Brackets
I took a wild guess as to tubing thickness and settled on .035″ for the 1″ left fore-arm tube and .058″ for the 5/8″ right fore-arm tube. All of the flat stock and tubes are 6061 Aluminum. I did the lathe work and the mill work and every evening I’d put the parts together and think about the proper way to proceed.

tube benchrest rifle

When the parts were mostly made, I started thinking that this was a truly ugly rifle. I thought about painting it but that wasn’t a good option as many of the parts are designed to slide over others and glue together. Anodizing was the best answer so while looking on the Internet for local anodizing shops I Googled “Home Anodizing”. Sure enough there were a few sites that told about how to anodize at home. I picked up some battery acid from NAPA Auto Supply, some Rit Clothes Dye from Wal-Mart, and a bunch of distilled water from the grocery store. Using an old battery charger as my dc power supply I started anodizing and dying the eighteen parts that went into the stock. Although I had to strip and re-anodize some of the parts, the work turned out acceptable.

Putting it All Together–Lug-Mounting the Fore-Arm and Lots of Epoxy
The barrel contour had to be modified to work with the stock which attaches by way of a rear plate which mounts like a recoil lug and a plate that ties the barrel and the stock tubes together 4″ forward of the bolt face. The four-inch maximum distance is a NBRSA rule concerning barrel blocks.

Davidson Benchrest 30BR

Davidson 30BR group targetThe recoil lug-style stock mount is probably the only truly innovative thing I did other than the opposing-magnet tuner. Basically, the rear bracket is sandwiched between the receiver face and the barrel shoulder–positioned where a conventional recoil lug would go. I also added a brass ring (visible in photo) between the anodized bracket and the barrel. This was done to distribute loads over a wider surface area. (I was concerned that the bracket material was fairly soft and I didn’t want to crush it as I torqued the barrel in place.) After fitting the barrel and plates I glued the entire gun together using epoxy and various LocTite adhesives. The rest of the parts were assembled but I did not Loctite the scope bases since I thought I’d be disassembling the rifle for re-work after the first trials. That came back to bite me during later testing when the gun started shooting erratically and I went down a couple of blind alleys before finding the loose bases.

Range Testing–Results Are Very Positive
The first range session was a real shocker. Even though the wind was up to 10mph and twitchy, the rifle showed promise from the very first shot. I really didn’t expect that kind of performance without, at least, some rework. After sighting in, I shot five, 5-shot groups that, when averaged together, measured .223″. That’s good enough to win some benchrest group matches. But I wasn’t finished with the gun yet–I still wanted to try out my magnetic tuner concept.

Magnetic Benchrest Tuner Davidson

The Magnetic Tuner
Next, I built the magnetic tuner. The tuner consists of one rare earth magnet attached to the stock and another attached to a barrel sleeve with the magnets oriented so the magnetic forces repel each other. In order to test the magnets and to determine if the rifle really shot as well as it seemed to, I took it to Gene Beggs’s shooting tunnel in Odessa, Texas. I spent two days at the tunnel testing loads and then installed the magnetic tuner. The gun shoots well with the magnets and shoots well without them. I suppose I can’t make any claims as to how much, if any, improvement the magnets make. Gene said that my gun was the most accurate rifle to be tested at his one-year-old shooting facility: “Shelley Davidson brought one of the most unusual rifles I had ever seen; he called it his ‘Tube Gun.’ And boy, did it ever shoot! It still holds the record in the tunnel as the rifle that shot more zeros than any other to date.” I definitely recommend Gene’s facility for testing and refining shooting techniques and loads.

Competition — Tinker Toy Won Both Score and Group Matches

Finally the big day arrived when I’d shoot the first match with my new gun. The North Texas Shooters Association was holding its first club match of the 2007 season. At the Denton, Texas matches we shoot a Score Match in the morning and a Group Match in the afternoon. The March event was at 100 yards and the April match will be at 200 yards and so on alternating throughout the benchrest season.

Davidson tube BR rifle Score MatchMatch One–Tinker Toy Wins Score with a 250 – 17X
Since the gun is chambered in 30BR and that chambering is almost immune to tuning woes, I preloaded 130 rounds with H4198 powder and 118gr Cheek bullets. I used my SEB front rest and rear bag which are made by Sebastian Lambang in Indonesia. Everything came together, and Tinker Toy demonstrated that the accuracy it showed in the tunnel was no fluke. The gun shot great and I won the morning match with a 250, 17X. The day was quite windy and the next best shooter scored a 250, 15X. So I’d chalked up my first win.

Match Two–Tinker Toy Wins Group with a .2282″ Agg
Tinker Toy won the afternoon group match I entered with a five-group Aggregate of .2282″. (The second place score was .2568″.) My groups were .149″, .197″, .243″, .302″ (oops), and .250″. You know how some folks say a 30BR can’t be competitive with a PPC? Well that .2282″ Agg won’t break any records, but it is good enough to win some regional registered BR matches. So this rifle has demonstrated an ability to win in both Score and Group matches. Obviously I have a very good Shilen barrel, great Cheek bullets and the rest of the components are doing their jobs as well. But, the stock is also working well.

Score Shooting vs. Group Shooting–The Rules
In a score match, the shooter shoots one bullet at each of five record targets, which are clustered on one target sheet. The Aggregate score of five of these targets determines the winner. If the shooter touches the 10 ring on all of his 25 targets he can score a “clean” 250 score. Usually there will be more than one shooter who scores a 250 so the winner is determined by the X-count. The 1/2″ 10-point ring has a 1/16″ dot in its center. Touching the X dot adds to the shooters X count. In short-range group matches, the shooter must try to put five bullets through the same hole. At each distance (100 or 200), five, 5-shot matches are scored, the group sizes are added together (MOA equivalent at 200) and the total is divided by five to arrive at an Aggregate score.

Permalink - Articles, Competition, Gear Review, Gunsmithing 1 Comment »
August 26th, 2020

IBS Match Report: 2020 100/200 Meter Score Nationals

IBS Score Nationals 100 200 yard benchrest championship mid-carolina orangeburg south carolina

2020 has been a challenging year for the shooting sports. The CMP National Matches at Camp Perry and NRA National Championships at Camp Atterbury were cancelled due to Pandemic health concerns. Other major matches have been dropped from the calendar due to COVID-19. That’s why we are pleased to report that the IBS was able to conduct the 2020 Benchrest for Score 100/200 Meter National Championships. Attendance was solid, and competitors had a good time. Here is the match report from IBS member Todd Payseur.

IBS 100/200 Score Nationals at Mid-Carolina Gun Club

Report from Todd Payseur
The morning light breaks and shooters begin to set the final touches on their wind flags. Yes, it’s time for the Nationals! For what has been a crazy COVID-impacted year with a lot of cancelled matches, dates being changed, and some states still not able to hold matches, many shooters had cabin fever for the Nationals.

IBS Score Nationals 100 200 yard benchrest championship mid-carolina orangeburg south carolina

Several people had concerns beforehand with even having a match in August at the Mid-Carolina Gun Club because of how brutal our summers can be, but Mother Nature really blessed us with a calm weekend. Saturday started with overcast skies and projected highs around 87 degrees, which for August is almost unheard of. A few showers during the day, but nothing that really amounted to much or effected any of the relays. The winds stayed calm and 20 VFS shooters stayed clean and 2 Hunter guns went for 250-10X with Peter Hills creedmooring Ronnie Milford for the top 6-power at 100 meters. In VFS a familiar face, Wayne France shot a great 250-21X edging out rookie shooter Will Till at 250-20X.

IBS Score Nationals 100 200 yard benchrest championship mid-carolina orangeburg south carolina
Lisa Moore, grandmother of Gage and Remy Logsdon, prepares for the next relay with bolt removed.

This is Will’s second season in VFS and he has steadily improved. His second place finish at 100 meters is the start of many great finishes ahead for this young man. Speaking of young people, I’m pleased to say we had a great showing of Junior shooters this year and they all deserve to be mentioned. Defending rookie of the year Tori Allen (below right) was the top junior, followed by first-year rookie Remy Logsdon. Gage Logsdon rounded out the top three junior shooters. With such young talents coming into the benchrest game, we are very optimistic about the future of our sport.

IBS Score Nationals 100 200 yard benchrest championship mid-carolina orangeburg south carolina
Wayne France (Left) with 100-yard 1st Place Agg patch. Tori Allen (Right) was the top Junior shooter.

Sunday at 200 meters was the Lin Smith show! Lin shot both a Heavy and a Light Varmint rifle and turned in a very impressive 500-17X for the day. This fine work led him to two of the top three places at 200 meters and a first and fourth in the Grand Agg. I can’t say enough about how happy everyone is for Lin. He is one good man that those of us in the southeast region are honored to compete with and call a friend.

IBS Score Nationals 100 200 yard benchrest championship mid-carolina orangeburg south carolina
Grand Agg winner Lin Smith really put on a display of fine shooting this weekend.

In the 6-power Hunter Rifle class, Jim Cline turned in an impressive 249-5X at 200 meters for the win and that led him to his first place finish in the Grand Agg followed by a solid 245-4X by Ronnie Milford who took second-place in the Grand Agg.

IBS Score Nationals 100 200 yard benchrest championship mid-carolina orangeburg south carolina
Here are all the winners with their wood. Left to Right: Will Till, Gage Logsdon, Lee Martin, Tori Allen, John Bosley, Lin Smith, Peter Hills, John Ridgeway, Remy Logsdon, Wayne France, Jim Cline and Ronnie Milford.

CLICK Chart for Full Spreadsheet with Results for ALL Shooters
IBS Score Nationals 100 200 yard benchrest championship mid-carolina orangeberg south carolina

IBS Score Nationals 100 200 yard benchrest championship mid-carolina orangeburg south carolina
View back to the benches from the 100-meter targets at Mid-Carolina Gun Club. the Orangeburg swirl is lurking in those trees… just waiting to push bullets where they just shouldn’t go!

Great Competition, Great Food, Great Location
Overall we had a good turnout with 35 VFS guns and 8 V/VH guns on Saturday and 34 and 7 on Sunday. Competitors came from as far away as Maine and Michigan and everywhere in between. The food was outstanding with meals available both Friday and Saturday evenings at the range along with lunches Saturday and Sunday. One thing is for certain, if you enjoy great food and great company, then the IBS VFS circuit is something you should come check out, I’m sure you won’t be disappointed!

About the Mid-Carolina Gun Glub in South Carolina
CLICK HERE for more information on the Mid-Carolina Gun Club in Orangeburg, South Carolina. This club boasts a great facility with plenty of room for cleaning/loading, plus a large, covered eating area with serving line. There is also parking for campers on the club property. I would like to personally thank Jim Cline and the whole Mid-Carolina Crew for another great weekend and cherished memory!

IBS Score Nationals 100 200 yard benchrest championship mid-carolina orangeburg south carolina
Jerry Powers from the Ashe County gang setting up a SEB MAX. SEB rests, both MAX and NEO, are very popular with score BR shooters.

Permalink - Articles, Competition, News 1 Comment »
July 12th, 2020

Sunday Gunday: Ocock Railgun May Be Most Accurate Gun Ever

Gary Ocock Rail Gun Unlimited Target Visalia CA 6 PPC IBS NBRSA
Want to see the details? CLICK HERE to view full-screen photo.

Gary Ocock railgun aggreggateCheck out those five targets. The Aggregate (average) of all five targets is a tiny 0.0840 inches! These were shot by Gary Ocock at 100 yards in a California benchrest match on August 6, 2017. Though Gary’s 0.0840 Agg beats existing records, this was not a “sanctioned” match, so Gary’s killer Agg will NOT be submitted for IBS or NBRSA records. So, sadly, the Agg won’t appear in the record books, but this remains a spectacular, verified feat of rifle accuracy, accomplished in competition.

Gary’s red railgun is arguably the Most Accurate Gun Ever Built. As far as we can determine, no one has ever shot a smaller 5-target Agg anywhere, at any time. FYI, the NBRSA Unlimited Class 5×5 Aggregate World Record is 0.1242″ shot by Jerry Lahr in 2012. Gary’s 0.0840″ Agg is much smaller.

The Unlimited Benchrest Record That Will Never Be (Official)

Report by Boyd Allen
Gary Ocock’s stunning unlimited Aggregate is beyond amazing. That’s an average of five, 5-shot groups of .0840. Shot under sanctioned match rules, but at an unsanctioned 100-yard fun match, this Aggregate is well under the current 100-yard official records of the IBS (.1386), and the NBRSA (.1242). The fourth of the five groups measured a minuscule .018, less than half the size of the existing NBRSA Unlimited record of .049 (also shot by Gary). Check it out:

Gary Ocock Rail Gun Unlimited Target Visalia CA 6 PPC IBS NBRSA

Gary Ocock Rail Gun Unlimited Target Visalia CA 6 PPC IBS NBRSA
When the top 15 shooters all post teen Aggs, conditions must be pretty favorable. However there were some light switchy winds — Gary said that he shot better in the left to right condition.

GUN SPECIFICATIONS
Ocock’s red Jay Young Unlimited Railgun features one major difference from Young’s typical Railgun designs. The bottom of the barrel block is integral with the top (moving part), of the gun. The barrel is Ocock’s usual 1:13.5″-twist Krieger chambered for the 6 PPC. The BAT Neuvo action* is unusual in that its lugs are horizontal at lock-up instead of the usual vertical. With horizontal lugs, both lugs maintain contact with their abutments when the action is cocked. In the more normal configuration when cocked the top lug is forced off of its seat by a combination of the angle of the trigger cocking piece interface, the pressure of the striker spring, and bolt clearance at the rear of the action.

LOAD SPECIFICATIONS
Gary shot this remarkable Agg with well-used brass, Vihtavuori N133 powder, and self-made 66gr BT bullets** seated at “jam”. This amazing Agg was shot on the second day of a 2-day Unlimited Benchrest match. On Day 1 Gary had experimented with various loads using both surplus IMR 8208 and Vihtavuori N133, but was not satisfied with the results. For his first group on Day 2, Gary tried a light load of N133. After seeing the result, however, he decided to go to the other extreme — a super stout N133 load — with the same powder. As you can see, Gary’s willingness to experiment paid off.

Gary Ocock Rail Gun Unlimited Target Visalia CA 6 PPC IBS NBRSA

Notably, Gary used light neck tension. Ocock found that for these bullets and this barrel, light neck tension worked best (contrary to “normal” N133 benchrest practice). Ocock used a bushing that only produces .001″ difference between the diameters of sized and loaded case necks.

This video shows a line-up of Rail-Guns. One of Gary Ocock’s Rails appears at the 0:35 time-mark.

Comment on Ocock’s Achievement
Congratulations to Gary Ocock for superb shooting (and smart loading). Even though the match was not sanctioned (so the Agg will never be a record), Ocock has raised the bar very high, and given us a new standard of ultimate accuracy.

Though this 0.0840 Aggregate and 0.018 group will never go into the record group, they are still noteworthy. There’s virtually no doubt that they would have survived inspection by any record committee. Except for the lack of fixed backers, an IBS requirement (for detecting cross-fires), all other conditions were met for an officially-sanctioned match.

Ocock Did Set Single-Group IBS World Record with Red Railgun

Gary Ocock red railgun HB IBS visalia record
Photo credit: Ben Zentner

Here is Gary with his Red Railgun at a Visalia event in October 2017. 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, 10/21/17, Gary shot an IBS Heavy Benchrest World Record putting five shots in just 0.045 inches, as certified by the IBS record committee. Here is that group, as first measured at the range at 0.039 inches.

Gary Ocock red railgun HB IBS visalia record

*The new BAT Neuvo actions are the result of a collaboration between Dwight Scott, and Bruce Thom, featuring Dwight’s ideas and BAT’s proven manufacturing expertise.

** Ocock shot his own, boat-tail match bullets, made with George Ulrich-crafted dies using Hood cores. Although he said that it had been a while since he had weighed any, his best guess was that they weigh something around 66.5 grains.

Permalink - Articles, Gear Review, Gunsmithing 6 Comments »
July 8th, 2020

IBS 2020 1000-Yard National Championships Moved to Missouri

Vapor Trail Valley Range Missouri IBS 2020 1000 yard 1K National Championships

Important news for 1000-yard benchrest competitors! The 2020 IBS 1000-yard National Championships will be held September 5 and 6, 2020 at the Vapor Trail Valley Range in Missouri. Take note — the IBS 1K Nationals were originally going to be held at the Hawks Ridge Range in North Carolina. So the event has moved from NC to Missouri, and will be held later in the year. This change was done because of uncertainties over COVID-19 public health policies/retrictions in North Carolina. Also, moving the Nationals to early fall gives more time to organizers to plan the event.

Vapor Trail Valley Range Missouri IBS 2020 1000 yard 1K National Championships

Forum member David 0306 from North Carolina observed: “As many of you have probably already heard, the 2020 1000-yard IBS Nationals has been cancelled for Hawks Ridge Gun Club in North Carolina. [Due to] uncertainty of what phase the NC Governor will have the state in, and the possibilities of going back into a stay-at-home order, the board at Hawks Ridge decided it was in the best interest of the shooters to cancel and allow another club to host the Nationals if possible. This will also help with travel plans, and getting time off from work. What I do know is Vapor Trail Valley has stepped up to the plate and has agreed to host the Nationals. Thank You Vapor Trail Valley and IBS shooters for your help and support through these difficult times.”

Vapor Trail Valley Range Missouri IBS 2020 1000 yard 1K National Championships

Permalink Competition, News, Shooting Skills No Comments »
November 15th, 2019

Crazy But It Works — Log-Splitter Heavy Gun for IBS Competition

Can you really make a silk purse from a sow’s ear? Would you believe a winning benchrest rifle could be constructed with a stock fashioned from a cast-off log-splitter? Well it can.

Anyone who has attended an IBS benchrest match knows that this brotherhood of shooters includes some “backyard engineers” who can build amazing things with low-cost components. Consider Steve Jordan. He has built a winning Heavy Gun with a gunstock made out of a wood splitter. Check out the photo. The butt section is in the shape of a “V” like an ax. The “V” sits on an adjustable, flat rear sandbag. The flat shaft of the wood-splitter, running horizontally, serves as the main chassis and fore-end. The barrel block sits on top (with the action floated), while the flat, forward section of the shaft rides the front bag. Not only does this “log-splitter” stock work, but Jordan has won IBS matches with it! Sometimes simple and cheap beats expensive and fancy.

Sam Hall Says the Log-Splitter Has Been “Kicking Our Tails”
Sam Hall (multi-time IBS 600-yard champion) reports: “I was not at the first match (years ago) where Steve Jordan debuted his barrel-blocked, Heavy Gun stock made out of a wood splitter. From what I heard he cleaned house with it that day. When I first heard about this log-splitter rig, I thought guys were pulling my leg. But the log-splitter Heavy Gun really exists. In fact, over the past two years at Piedmont, Steve’s home-built log-splitter HG has won numerous Heavy Gun matches, out-performing nearly all the other Heavy Guns on the line, even those that cost thousands more to build.

Steve made the rifle as economical as possible. Steve’s entire stock is made from a metal wood splitter. From what I understand, Ray Lowman gave him the barrel block. This rides on the shaft of the wood splitter. With this inexpensive, simple rig Steve has kicked our tails at times! By the way, Steve’s Heavy Gun is chambered as a 6mm Dasher.”

Accurateshooter.com International Benchrest Shooters

Permalink Competition, Gunsmithing No Comments »
October 25th, 2019

IBS Match Report — 2019 100/200 Meter Score Nationals

IBS meter 100 200 score nationals national championship benchrest South Carolina Mid-Carolina
View through 6X scope at 2019 Metric Score Nationals in South Carolina. This is exactly what Jeff Stover’s camera recorded — it is not a Photoshop job.

IBS meter 100 200 score nationals national championship benchrest South Carolina Mid-CarolinaMatch Report by Jeff Stover, IBS President
“You need to come shoot with us” said Jim Cline at the January 2019 meeting of the IBS. Jim is both a Match Director at Mid-Carolina and an IBS Vice-President. I, as IBS President, considered it for a few seconds. Virtually all of my shooting is short-range group, but I wanted to see why IBS Score Benchrest was so hot — and growing — in the Southeast. “I will be down in October for the Score Nationals” was my response. Bottom line — The event was great, and I should have made the trip years earlier.

The Mid-Carolina Rifle Club is located about 35 miles southeast of Columbia, South Carolina. It sports 20 solid and well-designed concrete benches. A nice feature is the very deep, behind-the-firing-line roof for cleaning rifles, and chatting with fellow shooters.

The main competition at the Score Nationals is for the “Varmint for Score” 13.5-pound rifles. The cartridge of choice is the 30 BR (6mmBR parent cartridge). The extra .065″ bullet diameter over a 6mm helps with the Best Edge Scoring, but the 30 BR gives nothing away to the 6PPC in the accuracy department. As any score shooter can tell you, the 30 BR is an inherently accurate cartridge that is relatively easy to tune.

IBS meter 100 200 score nationals national championship benchrest South Carolina Mid-Carolina
Firing Line at Mid-Carolina Rifle Club with ample behind-the-Line roof coverage.

It was a dream shoot for me. I don’t have a VFS 30 in my gun cabinet, but that was all taken care of. Both rifle and ammo came courtesy of Mike Clayton, one of the circuit’s top shooters. All I needed to bring were my rests! Mike’s rifle was a laser which I did not fully exploit. Mike showed true Southern Hospitality.

IBS meter 100 200 score nationals national championship benchrest South Carolina Mid-Carolina
Mike Clayton ready to pull the trigger on his 30 BR rifle.

About 70 shooters made their way to Orangeburg. More had preregistered but the threat of Tropical Storm Nestor kept a few away. The storm was projected to bring 25+ mph gusts and heavy rain on Saturday. Those dire predictions did not materialize. We had somewhat light, but quickly switching, winds and mostly light rain. It was a dreary day for 100 meter competition but the mood along the firing line was convivial.

IBS meter 100 200 score nationals national championship benchrest South Carolina Mid-Carolina
Tropical Storm Nestor delivered only rain and switchy breezes instead of the predicted gales.

At 100 meters, Brud Sheats led the way with a very nice 250-23X. On his heels were Ronnie Milford and Jim Cline with 22 and 21 Xs respectively. Jim and Ron are leading the Score Shooter of the Year standings. In 6-power class, Jim Cline’s had a good 250-14X for high score with Dewey Hancock 3 Xs behind.

IBS meter 100 200 score Emilee nationals national championship benchrest South Carolina Mid-Carolina

Young Lady Shines at Her First Registered Match
Above is young competitor Emmalee McMurry (from eastern Tennessee) with her 6 PPC Heavy Varmint rifle. This was her very FIRST registered match. Her father Bill is her coach and mentor. Using her 6 PPC she shot two really good targets, a 50-5X and 50-4X. I shot next to her, and was impressed — she has composure and was very comfortable shooting a bench gun. If she stays with it, she could be a future force in Score Benchrest competition. — Jeff Stover, IBS President

Sunday, the targets and stationary backers were moved to the 200 meter butts. The weather started as Saturday had finished — light misty rain with some fog and 10 mph switchy wind. By mid-morning, however, the rain stopped and around lunchtime things brightened. After lunch the sun started to make more frequent appearances and the Orangeburg mirage returned. At the conclusion of the 200 meter stage only three of 65 shooters shot “clean” — i.e. a 250 score, with a 50 on every target.

IBS meter 100 200 score nationals national championship benchrest South Carolina Mid-Carolina
Jim Cline aligning rifle. The multiple bolts are for his Light and Heavy VFS rifles and 6X Hunter Class rifle.

Mid-Carolina Rifle Club Extends the Red Carpet with Fine Food
All shooters were treated to a free grilled chicken and macaroni and cheese luncheon. In the evening, for a small charge, the Mid-Carolina club hosted a catered prime rib dinner. It was the “real deal” — premium beef carved to order. We had hoped for a pleasant Carolina evening instead of poor weather, but the great food made up for it.

At 200 meters, Brud Sheats lost none of his score-shooting mastery from Saturday. He won VFS 200 with a 250-5X. Ken Habadank followed with a Creedmoored 5X and Miles Gibby was 3rd with a 250-2X. The golden rule of score shooting is “stay clean”. That is, shoot a 50 on every target (five tens). The Xs are gravy, especially at 200. Anthony Isner shot a really nice 12 Xs in those conditions. But a wayward shot cost him a point on one target. A 250 beats a 249 despite the X counts. Having won both yardages Mr. Sheats won the 100-200 Grand aggregate with a 500-28X. Ken Habadank’s second place was six Xs behind. Miles Gibby, the only other 500 shooter, had 17 Xs to complete the podium.

IBS meter 100 200 score nationals national championship benchrest South Carolina Mid-Carolina

See Complete 2019 100m/200m IBS Score Nationals Match Results HERE on IBS Website.

So what about the 6-power-max optics rifles? Shooting a 6-power scope at 100 meters is tough enough. At 200, well, it is twice as difficult, especially in Sunday’s conditions. Anthony Isner’s 243-4X won the day followed by Maine’s Orland Bunker at 242-3X. In the 6X Grand Agg, Dewey Hancock took the title with a 491-16X, closely followed by Brian Fitch with a 490-16X.

IBS meter 100 200 score nationals national championship benchrest South Carolina Mid-Carolina
After Cease Fire is called, competitors show detached bolts to ensure safety.

Great Match — With Many Fine Shooters Returning to the Ranks
This was a fine, well-run match by any standard. I did not embarrass myself with a score rifle, so that was a plus! I made the trip to see “what’s what”, and was delighted to find a range full of enthusiastic and fun competitors. And these fellows really know how to shoot. I talked to several shooters who have come back to the sport after years, if not decades, of being away from benchrest. The PR efforts of Jim Cline, Ronnie Milford and other stalwarts in the region are beating the drum and many are answering the call.

IBS meter 100 200 score nationals national championship benchrest South Carolina Mid-Carolina

IBS meter 100 200 score nationals national championship benchrest South Carolina Mid-Carolina
Score Benchrest rifles racked and ready for the next relay.

IBS meter 100 200 score nationals national championship benchrest South Carolina Mid-Carolina
30 BR ammo with timer, and bolt lube, on bench.

Permalink - Articles, Competition, News 1 Comment »
October 6th, 2019

Sunday GunDay: Chris Nichols’s 600-Yard Light and Heavy Guns

IBS Benchrest Chris Nichols Heavy Gun Record HG aggregate north carolina
Chris Nichols with potential world record (1.297″ 4-Target Agg) Heavy Gun Targets!

Report by Bart Sauter, Bart’s Custom Bullets
Chris Nichols is one of the best 600-yard shooters in the game. This 2019 season he compiled one of the most impressive mid-range benchrest seasons ever. Check out the stats — Chris’s nine-match, Two-Gun Group Aggregate (Agg) for the year is 1.983″! That’s under two inches average at 600 for 72 record targets fired in competition. Many 600-yard shooters aspire to shoot a single, 4-target Agg that measures 1.983″, but doing that for 72 targets is amazing!

And of the nine matches Chris shot, he took SIX Overall Two-Gun wins — a 67% win ratio. And in the process Chris also shot what is possibly the smallest 4-target Heavy Gun Agg ever recorded — 1.297 inches. Hey readers — that Agg works out to 0.206 MOA average group size — well under quarter-MOA for four, 5-shot groups at 0.34 MILES (600 yards)!

IBS Benchrest Chris Nichols Heavy Gun Record HG aggregate north carolina
Chris with 0.665″ group at 600 yards. This is the smallest HG group fired in the IBS in 2019.

The Equipment: 6mm Dasher Light Gun and Heavy Gun
Chris likes to run 1.550 stainless steel Bat “B” actions, Jewell triggers, Brux or Bartlein barrels. He prefers wooden stocks as he feels they produce a better resonance for Long Range rifles. Chris has his own stock design crafted by Johnny Byers. Imagine a Wheeler LRB stock front half mated with an McMillan ST 1000 rear section and you have Chris’ stock! It features a Wheeler-type, 4″-wide fore-end with an ST 1000 low-comb profile in the back. Both Light Gun and Heavy Gun sport Vortex 15-60x52mm Golden Eagle scopes mounted with Harrell’s double screw tall rings. Chris does NOT use either muzzle brake or tuner.

IBS Benchrest Chris Nichols Heavy Gun Record HG aggregate north carolina
Here is Chris at his home range with his Light Gun (17 lbs. max).

Chris Nichols’s Heavy Gun is a true heavy coming in at around 42 pounds. It was responsible for the HG Agg of 1.297″ (potential new world record). His season-long aggregate with his Heavy Gun was 1.861″ for 36 targets! This rifle has similar components as his Light Gun, except the barreled action rides in a barrel block in a McMillan HBR 50 BMG stock.

IBS Benchrest Chris Nichols Heavy Gun Record HG aggregate north carolina

Both rifles ride a top of a Sinclair competition rest with a Protector DR Flat Top rear bag. When Chris goes to HG gun he simply switches tops (made by Daniel Greenlaw) on his front rest to accommodate the larger forend. As Chris says ,” This keeps things simple and exactly the same. ” Just the way he likes it.

Reloading for the 6mm Dasher
Chris’s load choice for both LG and HG is Hodgdon Varget pushing 105gr Berger VLDs. He uses CCI 450 primers, seated with an old Lee hand primer. When it comes to reloading, Chris likes to keep things as simple as possible. “If people saw me reloading they’d probably laugh!” Chris revealed that he doesn’t anneal or clean his cases. He just sprays them down with Hornady One Shot Case Lube, resizes, then runs a brush down the necks, and cleans the primer pockets. The only cleaning his cases get is when he wipes the lube off of them. Chris WILL trim and chamfer as needed.

Chris says seating consistency is critical — he uses a K&M Arbor press with force dial indicator. I asked if there were certain numbers he looks for when seating. Chris replied, “I’m only concerned with consistency and not a certain number, 5 pounds or 60 pounds. It doesn’t matter as long as they are the same. I take what the brass gives me.”

Tuning the 6mm Dasher for Record-Setting Accuracy
I asked Chris what was special about his Dasher and how he kept it tuned and so competitive? His reply is something all shooters should pay careful attention to: “[Success] starts with having a good reamer, bullets and barrels. But more than that, it’s KNOWING your Cartridge, KNOWING your bullets, and KNOWING your barrels! I’ve shot it so much I just know what to do. I’m comfortable with it. I know how to get it to shoot and when it’s not, I have a pretty good idea how to get it back in tune. Once you know your equipment, then you can learn how to get the most out of it.”

IBS Benchrest Chris Nichols Heavy Gun Record HG aggregate north carolina

Chris has a range at his house and he tunes at 300 yards. He looks for consistent, 300-yard 5-shot groups of 0.600″ or less! He wants to see nice round groups! Not groups with four in and one out or vertical strings. Chris starts by finding “touch” (to the lands) then he moves the bullets .002″ off the lands and begins tuning. Chris has found that usually somewhere around .008-.012″ off the lands is where his Berger 105gr VLDs shot best. I asked Chris what’s the biggest factor contributing to his success? He said, one big thing was that he can do his own work. That’s a huge advantage.

Look for Accuracy First, Velocity Second
Early on Chris had it in his mind that for a 6mm Dasher to shoot best he needed to achieve a certain velocity range — 2990 to 3030 FPS. The problem was he wasn’t paying attention to what the target was telling him. He’d get to the speed he was looking for but the accuracy wasn’t there. Once he started slowing the speeds down and giving the barrel what it wanted, then the accuracy came! Also with the slower speeds came better consistency.

Chris Nichols’s Tuning Tips for 6mm Dasher:

• Take consistency over speed.
• Only change one thing at a time and run it to the ground.
• Every barrel is a little different, so give it what it wants.
• Pay attention to what your target is telling you.
• Don’t be afraid to REDUCE your powder load.

Chris Nichols’s Advice for New Shooters
Chris says the best thing a new shooter can do is align themselves with knowledgeable people, and if they will talk, listen! Next, be ready to buy the best equipment or be ready to buy it twice. Chris also says: “Don’t cheap-out on sighters. Sighters need to be just as good as your record rounds.”

In the Beginning — Learning the 600-yard Benchrest Game
Chris’s shooting career began in 2012. His first win came in 2014. He was shooting beside guys like Sam Hall, Larry Isenhour, Mike Hanes, Jeff Godfrey James Coffey, and Chad Jenkins, who are very tough competition indeed. He said when he won he was ecstatic and he’ll never forget it! That first trophy had him feeling like he’d just won the Nationals! Chris shot a 6BR for the first two years of his career, before switching to the 6 Dasher. I asked him why he switched? He said, “guys were starting to shoot the Dasher and winning with it!”

I asked Chris if he had a mentor and he said, “not really”. He learned by watching the guys who consistently finished Top 5 at matches and occasionally asked them a question. Not two questions, just one! Chris didn’t want to push his luck by asking too much. Then Chris would take that information and test it and apply it to his own shooting. Chris says, “he learned mainly by the ‘school of hard-knocks’. The good thing about learning that way is it sticks with you!”

Chris Nichols 2019 600-Yard Win List and Statistics

(more…)

Permalink - Articles, Bullets, Brass, Ammo, Competition, Gear Review, Gunsmithing No Comments »
September 10th, 2019

Great Day at White Horse — Mike Shoots 600-Yard Personal Best

600 yard benchrest white horse firearms range IBS West Virginia

We like to acknowledge excellence in marksmanship, particularly when a competitor manages to shoot a personal best, dropping five shots right in the middle of the target at 600 yards in windy conditions. That’s worth celebrating.

600 yard benchrest white horse firearms range IBS West Virginia

Recently Michael Bencivengo was competing in a 600-yard match at the White Horse Firearm & Outdoor Education Center in Philippi, West Virginia. Even with windy conditions during the match, Mike drilled an impressive 1.227″ group, all centered for a 50 score. And four of the five shots are clustered in about one-half-inch of vertical!

No this is not an IBS record, but it is a mighty fine group and a personal best for Mike. We think that’s worth acknowledging. As all of us get older, it is great to experience a personal best.

600 yard benchrest white horse firearms range IBS West Virginia

Posting on the USA Benchrest Facebook Group, Mike notes: “[I shot] my personal best and smallest group on a very windy day at the GBA 600-yard match 50-0X with a 1.227 inch group.”

600 yard benchrest white horse firearms range IBS West Virginia

We’d all be smiling after shooting a target like this at 600 yards…

600 yard benchrest white horse firearms range IBS West Virginia

The scenic White Horse Firearm & Outdoor Education Center is located at 127 White Horse Lane, Philippi, WV 26416. (Mailing address is White Horse Center, P.O. Box 2091, Buckhannon, WV 26201.) The White Horse range is close to many large East Coast cities:

Permalink Competition, Shooting Skills 3 Comments »
September 8th, 2019

Sunday GunDay: 6mm Dasher Winner From Forum Classifieds

Bob A. 6mm Dasher Sacramento F-Class March Madness

With the 6mm Dasher cartridge becoming popular with PRS/NRL competitors as well as the benchrest crowd, we thought it was time to re-visit a special rifle chambered for the 6mm Dasher wildcat. This gun has a great story behind it. Forum member Bob A. (aka “Killshot”) used his “Forum Classifieds Special” to beat all comers in the F-Class Division in the American-Canadian Match and the Long Range Regional Match in 2013 in Sacramento, CA.

Bob’s 6mm Dasher sports a blue-printed Rem 700 action. Who says you need a high-dollar custom action to run with the big dogs? In fact, this same gun, built with components sourced from AccurateShooter Forum Classified Ads, set a Sacramento F-Class range record of 200-17X a few years back. In this story, Bob talks about the build, and he explains his methods for loading ultra-accurate Dasher ammo.

Bob A. 6mm Dasher Sacramento F-Class March Madness

Bob’s Budget-Build Dasher F-Classer
I wanted to build a proper rifle for F-Open but needed to keep it simple and, well, cheap. I found a solid “base” to build on in the form of a Dave Bruno-built, “pre-owned” 6-6.5×47 Lapua that I located in the AccurateShooter Forum classifieds in late 2011. The base action was a trued and blue-printed Remington 700 receiver circa 1971 with a spiral-fluted bolt. It was in a Shehane ST1000 stock painted sky blue and had a Jewell 1.5-oz BR trigger. I sent the bolt to Greg Tannel (Gretanrifles.com) to have the firing pin hole bushed and sleeved, the ejector removed and the hole filled and the face trued. I upgraded to Tannel’s Light Steel firing pin assembly while it was out.

Having the working bits completed, I needed a barrel. So I went to the AccurateShooter classifieds again and found a 1:8″-twist, 30″ x 1.25″ (diam.) Bartlein with a 0.236″-land bore. I called Dave Kiff and explained my pursuit and he recommended his PT&G “world record” 6 Dasher reamer (.2704″ no-turn neck and .104″ freebore). A month or so later the reamer and gauges arrived.

I had the barrel chambered by Marc Soulie of Spartan Precision Rifles (510-755-5293, Concord, CA). Marc is a great builder and I’m pleased to call him a friend.

Bob A. 6mm Dasher Sacramento F-Class March Madness

The rifle got its good looks from a Pennsylvania artist named Kenny Prahl. His Prahl Designs shop (724-478-2538) added the white ghost-flames over the existing sky blue metallic paint.

Looks Great, Shoots Better
Fire-forming showed great promise — ten-shot groups of half an inch at 200 yards were typical. I lost only one case to a split neck and the “blow lengths” are good and consistent. This was followed up with load development which saw 100-yard, five-shot groups in the .1s and .2s as the rifle showed its preference for Reloder 15 over Varget powder, and for CCI 450s over all other primers. The bullet of choice was the ever-popular Berger 105gr Hybrid Target.

Bob A. 6mm Dasher Sacramento F-Class March Madness

In February 2012 I began shooting the Dasher in monthly club matches at the Sacramento Valley Shooting Center, the home range of a number of excellent F-Class, Benchrest and High Power shooters. Using a Farley Coaxial rest up front (also picked up from a WTB ad on AccurateShooter’s Forum) and an Edgewood bag in the back, I gradually improved my gun-handling to the point where I could shoot a respectable score. This was very different from the bipod shooting I’d done in the past in F/TR.

Bob A. 6mm Dasher Sacramento F-Class March Madness


Bob A. 6mm Dasher Sacramento F-Class March MadnessDasher Loading Tips
My chamber is set up for blue box Lapua 6mmBR brass. My case preparation is straight-forward. I fire-form with virgin cases right out of the box. I don’t size them but I will give the primer holes a good look and clean up the flash hole with a .058″ bit in a pin vise. To fire-form, I seat a Berger 108gr BT .030″ into the lands over a standard 6mmBR load of Varget.

For match loads, I use Alliant Reloder 15. While Varget is less sensitive to temp changes, RL15 has given me lower extreme spreads and better long range control. [Bob acknowledges that every barrel is unique, so a different powder, such as H4895 might work better for you.]

I clean my fired cases with stainless steel media in a Thumler’s rotary tumbler after every firing. I anneal after every other firing using a Bench-Source machine which is very well made and easy to operate. I use a Whidden full length bushing die with Redding bushings for sizing.

After sizing, I chamfer the inside of the neck with the K&M tool which has a pilot rod centered in the flash hole. Then I’ll give the neck and mouth a “once over” with some 0000 steel wool. I finish loading off with a Redding Competition Seating Die with the micrometer top.

Bob A. 6mm Dasher Sacramento F-Class March MadnessI use a carbide ball on the expander rod of the full length sizing die. I use a .266″ TiN-coated bushing and the ball just kisses the inside walls of the sized neck. I get very consistent neck tension this way and have had no issue with split necks.

Seating Depth Considerations
With fire-formed brass, the junction of the bullet’s bearing surface and boat-tail is above the neck/shoulder junction of the case, so I have no issues with donuts. You can see how a loaded round looks in the photo at left. For occasional trimming, I use a very nice little Possum Hollow trimmer that indexes on the case shoulder.

Permalink Bullets, Brass, Ammo, Competition, Tech Tip 1 Comment »
August 30th, 2019

IBS Match Report: 2019 Group Nationals in Holton, Michigan

IBS Group Benchrest Nationals Jeff Stover IBS
4-Gun winner Wayne Campbell is arguably the best group benchrest shooter in the world right now.

IBS 100/200 Yard Group Benchrest National Championships

Story by IBS President Jeff Stover President based on report by Harley Baker

Western Michigan was the site of the 2019 IBS Group Nationals. This major event was held August 12-17, 2019 at the Holton Gun & Bow Club. This club hosts many quality group benchrest matches throughout the season, and this one was no exception. The Holton team, especially match director Nancy Scarbrough, made everything seem easy. The shooters, however, don’t find conditions easy at all.

Jeff Stover IBS International Benchrest Shooters Holton gun bow club MI Michigan 6PPC Vihtavuori N133

Summer Sun, Mirage, and Switchy Winds
In the middle of August, Holton’s sandy soils can generate fierce mirage. It can get so bad that competitors may not be able to see bullet holes clearly and target rings can become indistinguishable. In Warren Page’s classic gun book, “The Accurate Rifle”, he speaks of mirage as “shooting through the swimming pool”. Well Warren Page must have shot Holton. When mirage was not the problem at Holton, switchy winds were the order of the day. CLICK HERE for 2019 IBS Group Nationals Results.

IBS Group Nationals Course of Fire
The IBS Group Nationals can be an endurance test as the event spans six days. The sequence of competition has 100-yard targets shot the first three days, followed by three days at 200 yards. 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.

Classes At the IBS Group Nationals
It takes thirty targets of 5-shot groups and ten targets of 10-shot groups to win a “4-Gun Nationals”. That covers FOUR classes: Light Varmint, Heavy Varmint, Sporter, and Heavy Bench. For all practical purposes, the first three are known as “bag guns” while the heavy bench rifles are “rail guns”. 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.

Day by Day Report — Group Nationals Highlights
The first day of competition was for the Heavy Bench class — the Rail Guns. That is what Heavy Bench is these days. Jeff Peinhardt had a handle on conditions for his five 10-shot groups. His largest group was only a .202″. The rest were small dark holes where the 10 bullets honed away any paper fuzz. His average for the five groups in this aggregate was .1710″. Really small, but only .0074″ behind was Paul Mitchell. Rounding out third place was Michigander Lee Hachigian with a .1866″.

Jeff Stover IBS International Benchrest Shooters Holton gun bow club MI Michigan 6PPC Vihtavuori N133

The “bag guns” come out on Tuesday for the 100-yard competition for Light Varmint and Sporter rifles. These are the 10.5-lb rifles. The only difference is that in Sporter you must have your rifle chamber with at least a 6mm bore. Since virtually everyone shoots a 6PPC it really doesn’t matter. Wayne Campbell from Virginia nailed a tight .1556” aggregate in Sporter at 100. Tony Alexander (.1758”) and Jack Neary (.1792”) rounded out the top three.

For Light Varmint at 100 yards. Larry Costa led the way with a .2022” when conditions were a little harder to read. Jack Neary and Kevin Donalds Sr. were close behind.

Wednesday morning of Nationals Week is Heavy Varmint at 100. Ken Donalds Sr. still had his rifle tuned to perfection as he won this aggregate with a .1624. Jack Neary and Harley Baker shot well with five-target averages in the .18XX. Wednesday afternoon the shooters take a break and hold a Powder Puff competition for non-shooters, including children and spouses were allowed to shot a group with bench coaching from seasoned competitors.

On Thursday the targets get moved to 200 yards along with a expanding sea of wind flags. Eventual multi-gun winner Wayne Campbell smoked the field Light Varmint 200 with a .1674 MOA Aggregate. His average group size at 200 yards was O.334 inches but in short-range group competition the scores are converted to minute of angle (MOA). The only other shooter Agging under 0.2 MOA was upstate New York restaurateur Pando Vasilovski with a 0.1927.

It was time for Sporter at 200 and Don Rosette from Ohio was the only shooter in the “teens” with a .1997 MOA Agg. Pando still had it working and was second.

IBS Group Benchrest Nationals Jeff Stover IBS
Here are some of the “Top Guns” from the 2019 IBS Group Nationals in Holton, MI.

Former Super Shoot winner Larry Costa won the Heavy Varmint 200 with a .2007 MOA Agg and he had room to spare to beat Kevin Donalds Jr. and Jeff Peinhardt with a .22 and .23 respectively.

The last day, Saturday, the rail guns were hauled out again for the Heavy Bench 200. Mark Buettgen topped the field with a .2572 MOA Agg. No need to check the equipment list to know what barrel brand Buettgen used. Mark works for Bartlein Barrels in Wisconsin. Wayne Campbell was just on Mark’s heels.

Grand Aggregate (100+200)
Winners (all MOA):

Light Varmint: Wayne Campbell, .1939
Sporter: Wayne Campbell, .2133
Heavy Varmint: Larry Costa, .2026
Heavy Bench: Don Powell, .2342

Multi-gun results:
2-Gun (HV+LV 20 targets): Larry Costa, .2197
3-Gun (LV+SP+HV 30 targets): Wayne Campbell, .2205
4-Gun (LV+SP+HV+HB 40 targets): Wayne Campbell, .2279
(in 4-gun Tony Alexander was second with .2404, followed by Larry Costa with .2451)

CLICK HERE for 2019 IBS Group Nationals Complete Match Results

The Rifle for Short-Range Benchrest Competition

Hardware Choices: Actions, Stocks, Barrels, Optics and More
Tech Talk by Jeff Stover

Let’s examine the Top Ten rifles from this year’s IBS Group Nationals in the 10.5-lb Light Varmint Class. We’ll focus on the most popular rifle components — the choices for Actions, Stocks, Barrels, and Scopes.

IBS Group Benchrest Nationals Jeff Stover IBS

For some years now, BAT has been the predominant action. This year BAT actions held nearly 100% of the Top Ten places in all the Bag Gun equipment lists. Bruce Thom’s Idaho-crafted actions, except for a couple stray actions in Heavy Bench, swept the top rankings.

IBS Group Benchrest Nationals Jeff Stover IBS

Next, look at barrels. Bartlein or Krieger seem to rule with upstate New York’s venerable Hart barrels as competitive. Shooters tend to go with winners, so Wayne Campbell and Jeff Peinhardt dominate as gunsmiths for the top benchrest shooters.

In stocks there seems to be variety, but there is some commonality. The Scoville and Scarbrough stocks, both Michigan-made, are laminated wood (balsa and other wood) with carbon fiber and wrapped in carbon fiber. The Scoville stock on my 10.5-lb rifle weighs 18 ounces but is full size with a nice long fore-end. Bob Scarbrough makes a very similar product. Both are winners — it’s a choice of Ferrari or Lamborghini. The Roy Hunter and Terry Leonard stocks among these top rifles take a different route to winner’s circle. Both are wood (cedar or other), but super high-tech as they are laminated with carbon fiber. They are beautiful to boot. High-magnification Leupold, March, and Nightforce scopes rule the roost among benchrest optics.

Bullets and Powder
Bullets are important. Really important. A hot bullet gives you “Teen Aggs” and lots of trophies. An average bullet does not. Most of these are 68 grain 6mm boattails. The Peinhardt (StaMoly Precision) bullet is well represented on this list, but some top shooters make their own as you can see. Bullet jackets are likely StaMoly or J4. For powder, nearly everyone shoots Vihtavouri N133 except a few guys running LT30/32 or surplus 8208.

Vihtavuori N 133 N133 powder reloading

Permalink Competition, Gear Review, News, Shooting Skills 1 Comment »
July 27th, 2019

IBS Enlists Blake Wilson as New IBS Editor

IBS 1000-yard benchrest

IBS Brings New Editor Onboard
International Benchrest Shooters is pleased to announce that Blake Wilson of Macon, Georgia is the new IBS Editor. In that role, Blake will help prepare Match Reports and short features on gear and notable competitors.

IBS President Jeff Stover reports: “We welcome Blake to our management team. He is a young and energetic long-range shooter with benchrest interest across the board. Over the past several years, he has been shooting mostly 1000-yard IBS matches with a few 600-yard competitions mixed in. He has competed at IBS ranges across the country, and calls the Hawk’s Ridge Gun Club in Ferguson, NC his home range.”

In his role as IBS Editor, Blake will work closely with AccurateShooter.com, interviewing competitors from all disciplines, communicating with match organizers, receiving match reports and equipment lists, and managing digital images. Blake will also help with some special IBS features and equipment articles, providing insights about the Benchrest shooting sports.

Blake is married with two adult children. He is a huge University of Georgia football fan who also enjoys hunting and fishing.

IBS 1000-yard benchrest

IBS 1000-yard benchrest

IBS benchrest

Permalink Competition, News 1 Comment »