Sunday Gunday: Wicked Accurate 6mmBR Tack-Driving Tubegun

June 22nd, 2025

Sunday Gunday: Wicked Accurate 6mmBR Tack-Driving Tubegun

This story first ran in 2010. But to mark our long-standing friendships with shooter Joe Friedrich and chassis builder Gary Eliseo, we wanted to reprise the article for 2025. Joe’s Eliseo-chassis 6mmBR rifle delivered some of the most amazing 100-yard accuracy with factory ammo we’ve ever seen, in any rifle, in any caliber. This gun produced groups in the “ones” with Lapua factory ammo. Read on to learn more.

Amazing Accuracy from 6mmBR Tubegun
What kind of accuracy do you think a tubegun can deliver with factory ammo — during barrel break-in? Perhaps 0.6″ at 100 yards, half-MOA if the conditions are perfect? Well you may want to change your preconceptions about tubeguns — and factory ammo. This Eliseo R5 repeater, smithed by John Pierce with a Pierce CM action and Broughton 5C barrel, shot the Lapua 90gr factory ammo into flat ONEs during the break-in session. A day later, in tricky 8-14 mph winds, the gun nailed a witnessed and software-measured 0.174″ 5-shot group using the 105gr factory ammo. That would be impressive for a “full-race” benchgun with precision handloads. For an across-the-course rifle shooting factory ammo, it’s pretty amazing.

Eliseo Tubegun Shoots in the Ones
This accurate rifle belongs to our friend (and designated expert trigger-puller) Joe Friedrich. During the initial break-in session, since his reloading dies had not yet arrived, Joe decided to start with some Lapua factory-loaded 6BR ammo he had on hand. After doing a few two-shot-and-clean cycles (with patches and nylon brush), Joe decided to try a 3-round group just to see if the Broughton barrel had some potential. To his astonishment, the Eliseo R5 put three rounds in 0.100″ (photo below left). Joe then cleaned the barrel again, shot a couple foulers and tried a 4-shot group. The results were just as stunning — 4 shots in a mere 0.104″ but three in virtually one hole (photo below right).

Joe’s Orange 6mmBR Tubegun SPECS Chassis: Eliseo R5 Repeater, fitted with Eliseo Front Sled and Rear Bag-Rider. Gunsmithing: Pierce Engineering Ltd.. Chambering: 6mmBR Norma, .272″ No-turn Neck, approx. 0.090″ freebore. Action: Pierce Engineering, Rem 700 footprint, Chrome-Moly, fluted bolt. Barrel: Broughton 5C (Canted Land), 27.5″, 1:8″ twist, Medium Palma contour. Trigger: CG X-Treme Two-Stage. Optic: March 10-60x52mm. Ammunition: Lapua 6mmbr 90gr Scenar BT (#4316045, non-moly), 105gr Scenar BT (#4316046, non-moly ).

You Can’t Believe How This Gun Shoots
Joe called your Editor and said “You can’t believe how this gun shoots with factory ammo!”. So we arranged a photo session for the next afternoon, where I could verify the rifle’s accuracy. Well it turned out the conditions were way more challenging than when Joe broke in the barrel the day before. Winds were running 8-14 mph and were swinging through 180 degrees half-way down the range. Joe fired a few 90s through the Oehler chronograph at my request, then opened a box of Lapua 105gr factory ammo. It took about four rounds for the barrel to settle in after being cleaned the night before. Then Joe got serious, and with your Editor looking over his shoulder, he drilled a 0.174″ five-shot group in switching winds, doping every shot. Joe felt the gun could have shot tighter but he missed one wind call.

Serious Accuracy with a Multi-Purpose Rifle
So there you have it — a tubegun that shoots in the ones with factory ammo. Joe says that, at least with the 90s, the Elesio R5 shoots as well as his 6 PPC. Joe stressed that “steering the tubegun is hard work. You really have to concentrate compared to a purpose-built bench gun like my PPC. With the tubegun, everything has to be perfect on every shot — hand position, cheek position, stock position in the bag. If you’re off just a little bit, it’s easy to steer the gun the wrong way and send a shot out of the group.”

Accuracy Great But Fouling Heavy and ES Could Be Better
Have there been any negatives to Joe’s 6BR tubegun experiment so far? Well, the Broughton 5C barrel, while phenomenally accurate, shows signs of being a bad fouler. Copper built up pretty quickly over the first 25 rounds or so. We saw best accuracy with a recently-cleaned barrel. Hopefully the fouling will lessen as the barrel polishes in with use. And the canted land barrel is slower than average with the factory ammo. Lapua rates its 90gr naked-bullet ammo at 2950 fps with a 26″ tube. In Joe’s 27.5″ barrel we only averaged 2901 fps. With the 105gr factory ammo, which is rated at 2790 fps, we averaged just 2694 fps. That’s quite disappointing. Also the ES on the factory ammo, slightly over 50 fps for both bullet types, wasn’t particularly good. Still, the overall results were stunning. This gun shoots better than many long-range benchrest rifles running carefully-developed handloads — and it does that with factory ammo, right out of the box.

Rimfire Benchrest Plus N50 Competition — Fun and Affordable

Joe Friedrich is a superb benchrest shooter, who has won many matches and set National Records in ARA rimfire benchrest competition. Here is Joe with “Sweet Pea”, his favorite .22 LR rimfire rig. With over 100,000 rounds through the Benchmark barrel, this well-worn rifle set an ARA 4-target Aggregate record! READ about Sweat Pea Record HERE.

The National 50 Benchrest League

Joe Friedrich is one of the founders of the National 50 Benchrest League (N50). Launched just a few years ago, N50 has easy-to-understand rules, and offers competition with a wide variety of rifles, both .22 LR rimfire rigs and air rifles. There are three classes — Pellet, Sportsman, and PRO. One can be very competitive in the Sportsman Class with a basic factory .22 LR rig or Air Rifle.

The 2025 N50 National Championship will take place August 22-24, 2025 at the NRA Whittington Center in New Mexico. Benchrest competition will be held at Whittington Coors Benchrest range, on the west side of the Whittington facility. CLICK HERE to register for the August event.

N50 competition is unique in allowing air rifle shooters to compete side-by-side with rimfire shooters. This allows folks to compete without the cost of expensive “top-dollar” rimfire ammo. Pellets are relatively inexpensive, and yes air is still free!

About N50 — The National 50 Benchrest League

Commentary by Joe Friedrich, Open Grove Benchrest
The National 50 Benchrest League (N50) offers a unique shooting experience. We shoot air rifles with pellets and slugs alongside .22 LR Rimfire shooters. We currently have sanctioned clubs throughout the USA offering competition and good fellowship.

N50 has three Classes: Pellet, Sportsman, and PRO. The first Pellet Class is strictly for pellet airguns ranging in calibers from .177-.30 using Diabolo-style pellets from various manufacturers.

The second class is the Sportsman Slug/Rimfire. This combined class allows any factory air rifle shooting commercially-made slugs in calibers from .177-.30 to compete against any factory rimfire that utilizes a factory-barreled action with no attachments to barrel. Pellet air rifles may also compete in this class.

The third class is the PRO Class, and no you do not have to have some magic card that says “Professional” to compete. This class allows purpose-built air rifles, and what we call “unlimited” rimfire rifles to compete. Three types of loads are allowed in PRO Class: .177 slug air-driven, .22 slug air-driven, and any .22 LR ammunition.

Another point — in N50, competitors are allowed to move up in class — you aren’t restricted to a “lower” division. For example, Pellet Class shooters can also move up to shoot in Sportsman and Pro. In addition, Factory rimfires are allowed in Pro Class. This way shooters with the less-expensive rifles can shoot more relays and also see how they compete with the unlimited rigs. It’s all about having fun.

We wanted to make N50 as simple as we could combining air rifles with rimfire so folks who have a factory rimfire can participate and have fun. We also did not want a lot of classes, so combining the two gun types would be simpler.

Air Rifle on beautifully crafted, plated Pappas Rest.

Similar Posts:

Tags: 6BR, 6mmbr, Competition Machine, Eliseo Tubegun, Joe Friedrich, Lapua Ammo, Pierce Engineering

  to view original article go to Read More