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)