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From: Leon Fisk <lfiskgr@gmail.invalid>
Newsgroups: rec.crafts.metalworking
Subject: Re: Speaking Of Welding - The Job, Big AH Batteries, and Best Disc
 for Stripping Steel
Date: Fri, 21 Feb 2025 10:27:19 -0400
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On Fri, 21 Feb 2025 09:14:00 -0500
"Jim Wilkins" <muratlanne@gmail.com> wrote:

<snip>
>The yield strength of hard drawn/stamped brass sets current ammo pressure 
>limits. It's similar to mild steel but more brittle, and is of course 
>rustproof which matters to the military. Some bolt actions have been proofed 
>to handle 120,000 PSI or more if the cases could.

That new Federal steel case is designed for 80,000 PSI as the standard
load. The material is suppose to be able to expand slightly to help
keep the case locked in the chamber and not blow back against the bolt
as hard. Can be reloaded too but didn't see any detail on that yet. Not
that I went looking for it either. 

Speculation was that it will be used to boost older rounds pressure too
for newer guns that could probably handle the higher pressure...

-- 
Leon Fisk
Grand Rapids  MI