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May 18th, 2025

Sunday GunDay: “Lowboy” Stock Upgrade for Shiraz F-Open Rifle

Shiraz Balolia Grizzly F-Class Laminated stock .300 WSM competition rifle gunsmithing gunstock lathe mill

Lowboy F-Class Gunstock Conversion

Project by Shiraz Balolia, President of Grizzly Industrial
The lowboy stock you see above started as an experiment. I had an extra Masterclass F-Class stock that had gone through two actions, four beddings, and multiple modifications over the years. I figured that there was nothing to lose if the experiment did not work out.

After deciding on the design, the stock was carefully leveled in every direction and milled to the precise dimensions for attaching the side pieces, which would be glued to the original stock.

Shiraz Balolia Grizzly F-Class Laminated stock .300 WSM competition rifle gunsmithing gunstock lathe mill
Shiraz Balolia Grizzly F-Class Laminated stock .300 WSM competition rifle gunsmithing gunstock lathe mill

Curly Maple and Bubinga wood were laminated to get the exact thickness of the side pieces so that the total width of the fore-end would be just under the total width allowed for F-Open stocks.

Shiraz Balolia Grizzly F-Class Laminated stock .300 WSM competition rifle gunsmithing gunstock lathe mill

Two guide pins made of Bubinga were drilled through each side so that the sides would not move when glued to the milled stock.

Shiraz Balolia Grizzly F-Class Laminated stock .300 WSM competition rifle gunsmithing gunstock lathe mill

Once the sides were glued to the blank, the stock was once again trued on the mill so it was perfectly flat and square with the back (see below).

Shiraz Balolia Grizzly F-Class Laminated stock .300 WSM competition rifle gunsmithing gunstock lathe mill

The stock was then sent to Keith Weill at KW Precision who did an incredible bedding job on the new BAT M action. The stock was then sent out for spraying a clear finish. Normally I spray my own stocks, but I did not have time for this stock, so that part was subbed-out. The finger grooves and “Shiraz” inlay had been done by me a few years prior during the old stock’s heyday.

Shiraz Balolia Grizzly F-Class Laminated stock .300 WSM competition rifle gunsmithing gunstock lathe mill

Modified Stock Has Significantly Lower Center of Gravity
The rifle was then assembled, a March 10-60x56mm High Master scope was installed, and break-in was completed on the new barrel. At the range, the stock performed great. The stock rides one-half-inch lower in the front bag and really feels good.

Shiraz Balolia Grizzly F-Class Laminated stock .300 WSM competition rifle gunsmithing gunstock lathe mill
CLICK HERE for full-screen photo.

Bartlein Barrel Is Chambered in .300 WSM
I was pleased to find that the Bartlein barrel I have on this gun cleaned up very well during barrel break-in and this “experiment” may turn into this being one of my best-performing guns. All of my F-Open match guns are .300 WSM (Winchester Short Magnum), and so is this one.

Shiraz Balolia Grizzly F-Class Laminated stock .300 WSM competition rifle gunsmithing gunstock lathe mill

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May 18th, 2025

Bloody Nightmare — Pistol Powder Loaded in 7mm-08 Rifle Ammo

Varget Kaboom TiteGroup Hand injury reloading fingers accident

This is a grim tale. A man almost lost the use of his right hand, and did suffer terrible injuries to his fingers. All because he picked the wrong bottle of powder off the shelf. We have run this story before, and we will continue to run it every year, as a caution to our readers. This mistake is easy to make, but the consequences can be dire. Always, always double-check your powder labels before you start the hand-loading process. If you don’t, you may not have a hand to load with next time…

Similar Labels, Disasterous Consequences
The shooter, Denny K., was assembling some rounds for his brand new 7mm-08 Savage hunting rifle. He thought he was loading with Hodgdon Varget. Instead he had filled his powder measure with Hodgdon TiteGroup, a fast-burning pistol powder. The labels are similar, so the mistake is understandable. But the results were devastating. Here’s what 41 grains of TiteGroup can do in a 7mm-08:

Varget Kaboom TiteGroup Hand injury reloading fingers accident

Posting on the Firing Line, in a thread entitled “Lucky to Be Alive”, Denny writes:

“This is the hardest post to post. I know if I had read it a week ago my comment would have been: ‘You have no business reloading’. I had everything perfect, except pouring the wrong powder in the powder measure. I type this slowly with my left hand, embarrassed but … possibly saving someone else a tragedy or, like me, a long drive to the Emergency Room and surgery to save my finger.”

CLICK HERE for bigger, more graphic photo of injury.
Varget Kaboom TiteGroup Hand injury reloading fingers accident

The Still-Sealed Bottle of Varget
Denny did not initially comprehend exactly why the kaboom happened. He thought maybe his new Savage rifle was at fault. Then, on his return home, he discovered something…

Denny wrote: “The seven-hour period it took to go to ER, transport to Trauma Center and surgery made me think it was a Savage rifle issue. Brand new rifle, new brass, triple-checked loading data. The next day I was humbled when I realized the Varget powder was still sealed.

I knew what powder to use. I thought [Varget] was what I used. Not until the following day did I realize the Varget was still sealed.”

At that point, Denny realized what caused the accident — “operator error”. He knew he had to warn others about using the wrong powder: “I knew I needed to share my mistake, even though it is embarrassing, just to remind people. I’ve been reloading for 30 years…”

Editor’s Comment: Denny was not a novice reloader. His experience demonstrates that this kind of mistake can be made by any hand-loader, even one with decades of experience. Be safe guys, take your time when you load your ammo. Remove powders from measures after your loading sessions (pistol powders can look very similar to rifle powders). And by all means CHECK the LABEL on the jug. As the TiteGroup label says: “A little goes a long way.”

It’s not a bad idea to separate your pistol powders from your rifle powders, or perhaps even load for pistol in a separate part of your workshop.

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May 18th, 2025

Cheap Tricks — Measure Shoulder Bump with .45 ACP Pistol Case

.45 acp pistol case bump gauge headspace tool

Here is a simple, low-cost way to get reliable readings of case headspace when you “bump” the shoulder back on your 6BR, .243 Win, or .308 Win brass. Credit Boyd Allen for this tip. First, you’ll need one .45 ACP case (.40 SW works too), with primer removed. Make sure the pistol case is trimmed square and that it is round. We recommend you first size it, trim it and chamfer. Next, take the .45 ACP (or .40 SW) case and slip it over the neck of a fired, unsized rifle case with the primer removed. Align the two cases between the jaws of your calipers and note the length from rim to rim (See photo below, with striped case).

OK, now you have the length for a fired rifle case BEFORE sizing. Next, take a full-length sized rifle case (without primer) and do the same thing, placing the pistol case over the neck of the FL-sized case (Bottom Photo). The difference between the two numbers is the amount of “bump” or set-back you are applying to the shoulder. Here the difference is .0015″. The amount of bump you need varies with your chamber and your load, but .0015-.002″ is a good initial setting. By using this simple tool, you can avoid bumping the shoulder too much. This will also help you set-up the depth of your full-length die to get the proper amount of bump each time.

Other Pistol Brass Types Work Too: Some folks have used this method but they prefer to work with 10mm or .40 SW brass rather than a .45 ACP, because slightly smaller-diameter pistol cases may conform to the shoulders of their sized rifle cases a bit better. That works fine — use whatever pistol brass case works best for your rifle brass. We got very repeatable results with .45 ACP brass but the method also works with 10mm or .40 SW brass. Just be sure the pistol brass has been sized, trimmed, chamfered, and de-burred.

Permalink Bullets, Brass, Ammo, Gear Review, Reloading 1 Comment »