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November 10th, 2024

Sunday GunDay: 6mm Rifle That Shot Smallest 1K Group Ever

Mike Wilson IBS 1000-yard light gun record 50-5X world's smallest 1000-yard Group

Look and be amazed. What you are seeing is the smallest 5-Shot group ever shot in 1000-yard competition. And it is also perfectly centered for a 50-5X max score, yes ALL Xs. Brilliant! This amazing group was shot by Mike Wilson in July of 2018 with his 17-lb Light Gun, chambered for a 6mmBR wildcat he calls the 6 BRAW (BR Ackley Improved Wilson). This spectacular feat of accuracy demonstrates the potential of the 6BR family of cartridges even at 1000 yards. For his record group, Mike shot Vapor Trail 103-grain bullets in Lapua 6mmBR fire-formed brass. He loaded Hodgdon H4895 powder with CCI 450 primers. The action was a BAT, the barrel a Brux.

The Best 5-Shot 1000-Yard Group in History

Story based on report by Sam Hall
Look at that target by Mike Wilson. This is one of the most remarkable displays of accuracy (and precision) in the history of long range shooting. This past weekend, Mike (aka “GA. Dawg” in our Forum) drilled a truly spectacular 1.087-inch, 5-shot group at 1000 yards, all centered up in the X-Ring. Yes, you read that right, a group barely over an inch at 1000, shot in competition at an official IBS benchrest match on July 21, 2018. Note, the group was measured at the range at an even smaller 1.068″ (see target). However, as certified by the IBS as a IBS Light Gun World Record, the group is listed as 1.087″.

How small is that in angular measurement? Well 1 MOA at 1000 yards is 10.47 inches, so Mike’s 50-5X masterpiece is 0.1038 MOA! Yes that is an IBS group size AND score World Record. And it is also smaller than the current NBRSA 1000-yard 5-shot LG world record, 1.473″ by Bill Schrader in 2002. This best-ever 1K group* was shot at an IBS registered 1000-yard match at Hawks Ridge Gun Club in North Carolina. Other records have been shot at Hawks Ridge in the past, but this is the most jaw-dropping.

Mike Wilson IBS Hawks Ridge 1000-yard benchrest 1000 record 1.086 inches
Sam Hall (left, green shirt) holds record target by Mike Wilson (right, white shirt).

Sam Hall, past IBS National Champion and IBS 600-Yard Shooter of the Year, was stunned by Wilson’s accomplishment: “This is a truely awesome marksmanship feat — one of the best in history. I think I would trade all 14 of my 600-yard records for that one!”. Mike’s amazing target will be submitted for approval as new Group Size and Score IBS World Records. Official approval is pretty much a certainty. The previous 5-shot, 1000-yard IBS record is 1.397″ (50 score) by Tom Sarver in 2007. (The NBRSA 1000-Yard 5-shot LG record is 1.473″ by Bill Schrader in 2002.)

Mike Wilson IBS Hawks Ridge 1000-yard benchrest 1000 record 1.086 inches

Posting on our Shooters’ Forum, Mike wrote: “Thanks everyone for the kind words. As humbling as this game is, when it comes together makes it all worthwhile! A very special THANK YOU to my traveling buddy, my son, Blake, and my wife Debra for allowing me to enjoy this crazy game.” Mike also wanted to thank his smiths and component suppliers.

Mike Wilson IBS 1000-Yard Light Gun Specifications

Action: BAT ‘B’ 1.550 Melonited Action with Jewell Trigger
Barrel: Brux HV 28″ Finished Length, 1:8″ Twist Rate
Chambering: 6 BRAW (6mmBR Ackley Improved Wilson), Chambered by Darrell Jones
Chamber Specs: 0.272″ No-turn Neck with 0.135″ Freebore
Stock: Shehane ST 1000 Fiberglass Stock (with stock work by Larry “Bullet” Archer)
Optics: Nightforce 12-42x56mm Benchrest NP-2 DD

LOAD Specs: Lapua 6mmBR brass (formed to 40° Ackley Improved), Vapor Trail 103gr bullets, Hodgdon H4895 powder, CCI 450 primers.

Mike Wilson IBS Hawks Ridge 1000-yard benchrest 1000 record 1.086 inches
Leonard Baity front rest with Protektor Bag. Italian Lenzi bag in rear.

World Record-Setting Cartridge and Load
Mike was shooting a 40-degree Improved version of the 6mmBR Norma cartridge. Long popular with Benchrest and 300M shooters, the 6mmBR was the original inspiration for this website. Yep, we started as www.6mmBR.com. The Improved version has extra capacity, allowing about 100 FPS more velocity when chambered with a long throat. For his record group, Mike shot Vapor Trail 103-grain bullets in Lapua brass. He loaded Hodgdon H4895 powder with CCI 450 (small rifle magnum) primers.

Praise from Fellow Competitors
Here are some reactions to Mike’s amazing group by our Forum members:

“Amazing target Mike Wilson! Your group might last forever as ‘the goal’ of 1000-yard Benchrest! Heck that’s a great target even at 600 yards.” — Mike J.

“Think about this for a second. That group was barely larger than the size of your index finger’s first digit and he printed it at 1000 Yards.” — Carlos

“Unbelievable!! Doing that under chosen prime conditions is an amazing feat but to do that in competition and to have everything to come together is just unbelievable. Amazing how far skill, precision, knowledge, and the products of this sport have come. Never thought we would see a group this small and well placed especially in the hills of North Carolina where the wind always blows. Congratulations. A true lifetime achievement.” — Yote Hunter

“I think that one will stand for a while. Hard work does pay off, but it don’t hurt to be one of the givers in the sport. Mike, you are ‘The Man’!” — Bill Shehane

“Awesome, awesome. Now the goal is to shoot UNDER an inch!” — Alex Wheeler

For more comments, read this AccurateShooter Forum Thread.

The 6mmBR Ackley Improved
Mike Wilson shot his spectacular group with a 40° Improved version of the 6mmBR cartridge with less body taper than a standard 6BR — the design is 0.463 at the body/shoulder junction (vs. 0.460 for standard 6BR). Mike calls his version of the 6BR Ackley a 6BRAW (“W” for Wilson). Sam Hall explained: “The 6BRAW is pretty much the same as a 6BRA or 6BR-AI (Ackley Improved). I sold the reamer to Mike last year. This has a 0.272 ‘No-Turn’ chamber with a 0.135 Freebore”.

6mmBR Ackley Improved 6BRA 6BRAI 6BRAW Mike wilson Tom Mousel

This photo shows a 40° 6mmBR Ackley Improved (6BRA), as used by Tom Mousel in Deep Creek, Montana. Mike Wilson’s 6BRAW may be very slightly different. For Mousel’s 6BRA with 28″ Krieger barrel, the accuracy node is about 2980-2990 fps, so this gives up only 30-50 fps compared to typical Dasher velocities. Mike Wilson’s load runs about 2980 fps also.

In the past couple of years, the 6BR Ackley-type cartridges have been hugely successful in 600-yard and 1000-yard Benchrest. Sam Hall notes: “This year the little 6BR-AI has shot the smallest groups ever fired in 600-yard and 1000-yard competition. Back in April 2018, bullet-maker Bart Sauter, using a 6BRA, shot a 0.311″ 50-score 5-Shot group at 600 yards.” (Read Sauter Story). Bart’s stunning 0.05 MOA group is now the 600-yard IBS HG World Record.(Note: Bart’s target was originally measured at 0.282″ but was later IBS-certified at 0.311″.)

Mike Wilson IBS Hawks Ridge 1000-yard benchrest 1000 record 1.086 inches
Mike used an Italian Lenzi rear bag. Mike says the super-slick nylon on the ears of this high quality rear bag make for better tracking. The ears provide support but don’t “grab” the stock, reports Mike.

More Comments by Fellow Shooters:

“Truly an amazing feat. The 5X was the icing on the cake! Many shooters would be very happy with that group size at 200 yards.” — Mr. Zero

“Words cannot adequately express how many of us feel about your magnificent accomplishment at 1000 yards. Congratulations — that is terrific!” — Gene Beggs

“Truly amazing … well done on a great achievement… RESPECT!” — Elardus

“Bravo Mike pour ce tir incroyable. Ton exploit est sur le forum de tir longue distance en France bonne continuation.” — Frederic Riso


* There are two North American sanctioning bodies for 1000-Yard Benchrest, the IBS and the NBRSA. The previous 5-shot, 1000-yard IBS record is 1.397″ (50 score) by Tom Sarver in 2007. The existing NBRSA 1000-Yard 5-shot Light Gun record is 1.473″, shot by Bill Schrader in 2002.

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November 10th, 2024

Ten Greatest Lever Guns — Do You Agree With This List?

Greatest top 10 lever RifleShooter magazine Winchester Savage Ruger

A while back, RifleShooter Magazine released a list of the Ten Greatest Lever-Action Rifles of All Time. Writing for RifleShooter, Brad Fitzpatrick examined a wide selection of lever guns produced in the past 150 years, and came up with this short list of ten “all-star” lever action rifles:

Rifleshooter marlin 336 1894 1886 lever gun

1860 Henry Rifle
Browning BLR
Marlin 336
Marlin 1895/444
Ruger 96/44

Savage Model 99
Winchester Model 1873/73
Winchester Model 1888/88
Winchester Model 1892/92
Winchester Model 1894/94

As with all “Top 10″ lists, this will be controversial. Where is the Winchester model 1866 “Yellowboy”, the favorite of Native Americans? Where is the iconic Winchester model 1895, the beloved gun Teddy Roosevelt called “Big Medicine”? But other choices are hard to fault. The Henry Rifle, the first popular cartridge lever gun, surely belongs on the list. And, believe it or not, the Winchester Model 94 is the best-selling sporting rifle of all time in the USA, according to RifleShooter.

Greatest top 10 leer guns yellowboy 1866

Greatest top 10 leer guns yellowboy 1866

So what do you think of RifleShooter’s Top 10 list? Does it make sense, or did RifleShooter magazine get it wrong? NOTE, on the Rifleshooter Lever Gun Page, to see descriptions/photos of ALL the guns, you need to click the gray arrows that appear (barely) below each gun description (see below). That will scroll through the ten guns horizontally, back and forth.

Rifleshooter marlin 336 1894 1886 lever gun

Fitzpatrick writes: “The lever action played a very legitimate role in America’s westward expansion. It could bring meat to your table or protect your land and assets against rustlers. Nostalgia aside, the lever gun is an effective hunting tool for those willing to live within its limitations. While it can’t beat a bolt gun with a light trigger and free-floated barrel in a long-range shooting competition, a lever action in the right hands can be rather accurate, especially given new advancements in rifle design and bullet technology.”

Historic American Arms — Teddy Roosevelt’s Lever Guns
These two lever action rifles, owned by President Theodore Roosevelt, are part of the NRA Museum collection. First is a Winchester 1886 rifle known as the tennis match gun because Roosevelt used winnings from a tennis match to buy it. Below that is a suppressed Winchester model 1894 rifle. Roosevelt liked to shoot varmints around Oyster Bay (Long Island, NY) with this gun so he wouldn’t disturb his neighbors — the Tiffany and Du Pont families.

Teddy Roosevelt Winchester 1894 1886 lever gun

Teddy Roosevelt Winchester 1894 1886 lever gun

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November 10th, 2024

Tips for Enhancing ChargeMaster Performance & Precision

RCBS Chargemaster Powder dispenser tuning software plastic straw

Do you own an RCBS electronic powder dispenser? If you do, take the time to watch this ChargeMaster Tuning video from 8541 Tactical. This nine-minute video demonstrates how to re-program your ChargeMaster to “tune” the dispensing process. The video shows the exact programming procedures to follow, step-by-step. Some folks want a faster powder flow — others tune their machines for a more reliable drop (with fewer over-runs). One cheap and popular modification is to insert a 1″-long section of a McDonald’s plastic straw in the ChargeMaster’s silver dispensing tube. This works surprisingly well to smooth kernel drop and prevent “clumping” that can cause an over-charge. The McDonald’s straw MOD is demonstrated in this video, starting at the 6:22 mark.

Large-Diameter Dispensing Tube Mod
Many folks have had success with the McDonald’s straw modification demonstrated in the above video. However, some folks would like to get even better flow performance (with virtually no clumping). Forum Member Frank B. has come up with a new option using a brass hose fitting with a large outside diameter. The hose fitting (with tape wrapped around the barbed nose section) is placed inside the RCBS dispensing tube (have some kind of wrap — you don’t want metal-on-metal). Here’s how the unit looks installed:

ChargeMaster tuning tweak brass fitting powder dispenser

Frank tells us: “I have found a cure for the over-throw problem. It is a simple 1/4″ barbed hose nipple. I wrapped a couple layers of tape around the barbed end for a snug fit. With this in place, I have thrown 100+ charges of Varget without a single overthrow. The ID of the barbed end needs to be approximately 3/16″ to feed a steady flow. This works because of the larger ID at the drop.”

Frank adds: “You can see in the photo that the powder is not stacking up. You can watch it drop one grain at a time. Hope this will take the aggravation out of your case charging.” For best performance with this brass fitting MOD, we recommend de-burring and smoothing out the front edge of the brass fitting over which the kernels drop.

Brass fitting mod suggested by Boyd Allen. We welcome reader submissions.
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