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Shooting & Reloading - Mausers, Big Bores and others >> Rifles

buckstix
.400 member

Reged: 07/11/12
Posts: 1112
Loc: Whitetail Country

Re: An A-Square - 338 A-Square Mag Cal - An Awesome Story
17/12/17 09:15 AM

Hello Rule303, 93x64mm

Thanks for the reply.

A-Square Hannibal rifles were built on the Enfield Action, but I'm not sure if the P-14 or the M-17. I also don't think these are Ugly, but some on the other forums do.

I took it out to the range today to give it a test run and to see how she shoots.

Reloading was a bit of a challenge. No dies or brass available anywhere in the entire country. Custom dies would be over a year wait. So, I purchased 20 rounds of new Weatherby 338-378 brass along with a set of RCBS reloading dies for the 338-378 WBY. I had to shorten the sizing die, and recut the inside belt clearance. Although they didn't have a set of reloading dies for the 338 A-Square Mag, C-4 did have a set of Form Dies, so I purchased the 338 A-Square Mag #4 Form die from them. The #4 is the last step in reducing 460 Wby Mag down to .338 but the neck isn't totally reduced so that's where the .338-378 dies come in.

Between the Form Die and the modified Sizing die, I was able to load 20 cartridges. They still had remanants of the radius shoulder and neck, but those would both go-away when fired. I was very consevative in my loading because no data exists for the 160g bullet. I started with 100g of IMR 4831 and will increase in increments of 2 grains to find the max loads. I'm thinking I should be able to get close to 3700 fps with this bullet.

Here's the results. (all 20 cases formed nicely into the rifle's chamber)

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Subject	Posted by	Posted on
An A-Square - 338 A-Square Mag Cal - An Awesome Story	buckstix	17/12/17 07:47 AM
Re: An A-Square - 338 A-Square Mag Cal - An Awesome Story	93x64mm	17/12/17 08:06 AM
Re: An A-Square - 338 A-Square Mag Cal - An Awesome Story	Rule303	17/12/17 08:40 AM
Re: An A-Square - 338 A-Square Mag Cal - An Awesome Story	buckstix	17/12/17 09:15 AM
Re: An A-Square - 338 A-Square Mag Cal - An Awesome Story	Rule303	17/12/17 02:49 PM
Re: An A-Square - 338 A-Square Mag Cal - An Awesome Story	buckstix	17/12/17 04:20 PM
Re: An A-Square - 338 A-Square Mag Cal - An Awesome Story	buckstix	18/12/17 04:27 AM
Re: An A-Square - 338 A-Square Mag Cal - An Awesome Story	DarylS	18/12/17 11:39 AM
Re: An A-Square - 338 A-Square Mag Cal - An Awesome Story	buckstix	19/12/17 10:41 PM
Re: An A-Square - 338 A-Square Mag Cal - An Awesome Story	DarylS	17/12/17 10:18 AM
Re: An A-Square - 338 A-Square Mag Cal - An Awesome Story	DarylS	17/12/17 10:34 AM

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