Fireform 338 EDGE brass??

[Goin'Hot]

Since the edge is a 300 RUM necked up, is the brass really "fire formed"? I'm having one chambered and just wondering if the inital loads I use for testing will be accurate or if I will need to re-test them up after firing.

I've seen a post about "x" grains with "formed brass".

 

[BHP9]

Re: Fireform 338 EDGE brass??

Read here

http://www.snipersparadise.com/articles/338edge.htm

and here

http://www.longrangehunting.com/articles/338-edge-1.php