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April 21st, 2020

Action Timing — Process and Benefits Demonstrated

Alex Wheeler Accuracy gunsmith Panda Kelbly Stolle action timing receiver benchrest video

Kelbly makes outstanding actions, including the Stolle Pandas. In the past 20 years, Pandas have probably won more benchrest matches than any other action (though BATs and Bordens are increasingly in the winning circle). Recently gunsmith Alex Wheeler of Wheeler Accuracy worked his magic on an aluminum Panda, optimizing the “ignition timing” of the action. This involves many small mods to bolt, camming surfaces, trigger, and firing pin: “The whole cam helix and detent shelf is re-cut. The firing pin and cocking piece are modified as well.” When executed properly, Ignition Timing has a number of benefits, including a smoother bolt opening/closing, improved firing pin fall, and enhanced accuracy (though the accuracy improvements can be subtle).

BEFORE Action Timing — Stiff and Clunky

Alex reports: “Normally Panda actions have plenty of firing pin fall. For one reason or another this one was very low. Before timing, firing pin fall was .210 with a Bix’N Andy (BNA) trigger. After trigger timing firing pin fall is .244 with zero cock on close.” Here is how the action functioned before timing work:

CLICK Photo to start VIDEO

Alex notes: “As you can see, after the cocking piece rides out of the detent notch it then
falls to the trigger and is then re-cocked. This is normal on most un-timed actions.”

AFTER Action Timing — Smooth and Refined

Alex explains the modifications he made for this Panda action: “Moving the trigger back adds cock on close. The whole cam helix and detent shelf is re-cut. The firing pin and cocking piece are modified as well. I do love a timed Panda. In fact, I like aluminum actions, I think there is something to them. But yes, I also recommend Borden as my first choice.’

CLICK Photo to start VIDEO

Fix for Right-Bolt Actions Only
After seeing these videos on Facebook, one poster asked: “I do like my Panda but this is exactly why I bought a Borden action and I love it. It’s good to know you can make a Panda better. Alex, can you time a left bolt Panda?”

Alex replied: “No, the tooling I built is all for right hand actions sorry….”

Permalink - Videos, Gear Review, Gunsmithing, Tech Tip No Comments »
July 8th, 2018

F-Class Beauty from KW Precision LLC

Delaware F-Open F-Class rifle Cerus Brux barrel Panda Action

Forum member Keith W. (aka “Cigarcop”) of KW Precision LLC is a talented riflesmith whose projects display outstanding finish work and attention to detail. Keith does some of the best bedding work we’ve ever seen. Here is one of his latest creations. Keith recently completed a stunning F-Class rig for a shooter in Delaware. It’s a beauty, that’s for sure. Keith has posted more details about this rifle in a Shooters’ Forum Thread.

Delaware F-Open F-Class rifle Cerus Brux barrel Panda Action

This handsome rifle features a polished Stolle (Kelbly) Panda Action, and two (2) Brux barrels, both chambered for the .284 Winchester cartridge. The real eye-catching component of this rifle is the stunning Cerus F-Open stock. This features multiple laminations with highly-figured Walnut on the sides. This certainly ain’t your “off-the-shelf” laminated stock. This just shows the beauty that can be achieved with carefully-chosen lamination layers (plus 12 coats of clear).

Delaware F-Open F-Class rifle Cerus Brux barrel Panda Action
This beautiful F-Open rig features a laminated wood stock with stunning figured walnut on the outside.

Keith of KW Precision LLC is renowned for his bedding work, and this rifle shows why. Keith takes great pride in his work, and his attention to detail is second to none. This bedding job is as good as it gets.

Delaware F-Open F-Class rifle Cerus Brux barrel Panda Action

Bringing out the figure in the wood requires multiple finish coats (and careful sanding between coats). But the results are worth it. Shown below is the Cerus stock, BEFORE the finish coats were applied. It took time and effort to transform the “naked” Cerus stock into a true stunner. Keith applied twelve (12) coats of PPG Automotive Clear with wet sanding between each coat.

Delaware F-Open F-Class rifle Cerus Brux barrel Panda Action

Permalink Competition, Gunsmithing 4 Comments »
August 4th, 2016

Dasher Duo: One for 1K and a Second for Groundhog Matches

6mm Dasher Shehane duo

Chuck’s Pair of Pennsylvania Dashers
There’s been a lot of interest in the 6mm Dasher cartridge lately, so we thought we’d showcase a matched pair of Dasher rifles belonging to a Forum member. The 6mm Dasher began as a wildcat improved version of the 6mmBR Norma cartridge. The 6mm Dasher has been very successful in competition, and now factory Norma-made Dasher cartridge brass is available from Bullets.com.

Forum Member Chuck L. (aka “Ridgeway”) has created a handsome duo of 6mm Dashers for competitive benchrest and varmint matches in Pennsylvania. Both guns are built on Kelbly Panda RBLP actions, with Bartlein 8-twist barrels, and Shehane Laminated Tracker Stocks. However, the two rifles are not exact twins, as you can see. One, which we’ll call the Big Dasher, is built on a Shehane ST1000 Tracker stock. The other gun, the Small Dasher, sports Shehane’s “Baby Tracker” stock — a design used with great success by Richard Schatz. The Big Dasher, optimized for 1000-yard competition, also has a slightly longer freebore — 0.136″ vs. 0.104″ for the Small Dasher.

6mm Dasher Shehane duo

Specifications for the Dasher Duo:

Small Dasher (13.5-pounder): Chambered for 6mm Dasher with approximately .104 freebore and a .264 NK. (No way of knowing exactly since it freebore was done in a separate operation by Kelbly.) Components are: Shehane Baby Tracker stock, Kelbly Panda RPLB action, Bartlein 1:8″ LV barrel at 26 ¾”, Kelbly Rings, Weaver T36, Jewell trigger. The barrel was chambered by Kelblys and the stock was bedded, glued and balanced by a shooting buddy (Forum Member johara1). I clear-coated the stock with auto urethane. Total weight is 13 lbs., 4 ounces.

Big Dasher (1K Light Gun, 17-pounder): Chambered for 6mm Dasher with a .136 freebore and .264 neck (PTG Reamer). Components are: Shehane ST-1000 stock, Kelbly Panda RPLB action, Bartlein 1:8″ HV 5R barrel at 28″, Shehane +20-MOA rings, Nightforce NXS 12-42x56mm, Jewell trigger. The barrel work, pillar installation, and bedding was done by Dave Bruno. The stock was clear-coated by Chuck with auto urethane. Chuck also made the rear butt plate and balanced the rifle. Total weight: 16 lbs., 13 ounces.

Chuck tells us: “I don’t get out shooting competition as much as I want due to time and family, but when I do compete, I shoot a Groundhog match at Southfork Rifle Club in Beaverdale, PA. Info on Southfork Club events can be found at Southforkrifleclub.com. The Southfork match is basically a 100-, 300- and 500-yard match with one sighter the entire match and 5 shots at each yardage for score. The Small Dasher, with the shorter ‘Baby Tracker’ stock, was set up for the Southfork Rifle Club’s ‘Light Unlimited’ class which has a 13.5-lb max weight.” (Editor: ‘unlimited’ is a misnomer for a weight-limited category.)

Chuck adds: “The Big Dasher with the heavy ST-1000 stock is set up for 1000-yard benchrest matches in Light Gun class. I hope to shoot a couple 1K matches with it at Reade Range in southwest Pennsylvania. I am still in load development for this rifle since it was just finished in January. One ironic thing is, it shoots the same load I’m shooting out of the lighter gun rather well. The only difference between the two chambers is the freebore is roughly thirty thousandths longer on the 1K gun (Large Dasher). I will also shoot this at Southfork in the ‘Heavy Unlimited’ class.”

6mm Dasher Shehane duo

Dasher Case-Forming: Neck-Turn then Fire-form with Bullets Hard in Lands
To fireform, I turn my cases down to fit the chamber and stop where the false shoulder makes snug contact with the chamber. Fire-forming rounds are loaded up with a 29-grain charge of H4895 or Varget and a 108gr Berger bullet seated hard into the lands about 0.020″ past initial contact with the rifling. It takes about three firings to make a nice clean Dasher case with a sharp shoulder. I anneal about every 3-4 firings. I have many cases that have about 10+ firings on them and they are still shooting well. The primer pockets are a little looser, but still hold a primer.

6mm Dasher case fire-forming fireform

Both Dashers Group in the Ones at 100 Yards
My main bullet for both rifles is the 107gr Sierra MK, loaded with Reloder 15 powder, Lapua cases and CCI 450 primers. My main load for the Small Dasher is 33.0 grains of Reloder 15. This load shoots in the ones at 100 yards. For the Big Dasher, I’m still working on a load, although the same 33.0 grain load shoots in the ones in the heavier gun as well. I’m still looking for more velocity and my ‘max’ node. So far, I’ve gone well above 33.0 grains of RL 15 without pressure signs, but that load produces vertical at 100 yards, so I’m going to tinker with the load until I see pressure or it starts to shoot.

Permalink Bullets, Brass, Ammo, Competition, Gunsmithing No Comments »
January 25th, 2011

SHOT Show Report: Cool New Stuff from Kelbly’s

New March 3-24x42mm FFP Tactical Scope
Every year, a visit to the Kelbly’s booth is one of the highlights of our SHOT Show experience. This year, Jim Kelbly showed off an impressive new First-Focal-Plane 3-24x42mm March Tactical Scope. We were impressed with this new scope. It offers a wide range of magnification in a compact design. As first glance you think you’re looking at a 4-12X optic, not a scope with 24-power on tap. The scope is intelligently laid out — with mil clicks to match the mil reticle. Notably, the elevation turret delivers a full TEN mils per revolution. That is the same as Nightforce’s “high-speed” mil turret, and the ten mils of “up” should get you all the way to 1000 yards with most popular cartridges. If you’re a tactical shooter looking for a mil-mil scope you should check out the new 3-24X March. We think it is very competitive with anything out there, and it is a lot more compact than many scopes in the 20-24X power range.

March 3-24x42 Front Focal Plane Tactical Scope

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Kelbly’s Also Builds Complete Rifles
Along with March scopes and Kelbly/Stolle Actions, the Kelbly booth had a stunning F-Class rifle on display, with a 10-60X March scope on top. This red and black beauty belongs to Jim’s son, Ian Kelbly. It features a polished Stolle Panda F-Class action, pillar bedded to a Precision Rifle & Tool laminated F-Class stock. This was the stock design Charles Ballard used to win back-to-back U.S. F-Class Championships. Jim noted that Kelbly’s continues to offer a full range of gunsmithing services, from barrel chambering to building complete rifles — with your choice of Kelbly stocks or third-party stocks.

Kelbly's F-Class Rifle

Kelbly's F-Class Rifle

Kelbly's F-Class Rifle

Permalink - Videos, Gunsmithing, New Product, Optics No Comments »