300 wby => 257 STW

[bjlooper]

We are having trouble with the primers getting loose after two shouts. So I was wondering if I could form 257 Stw out of 300 wby brass by norma.

DR B

 

[James Jones]

you can but your [rimers are gonna fal out sooner ,the Norma brass is the softest stuff on the market , though it is very consistant and a pleasure to for cases from it due to it being so soft.

I have heard that the Nosler brass is a bit tougher than other brands but I have no first hand knowledge of that.

I have seen some guns get loose primer pockets soon due to a loose chamber , cold this be the case here or are you just runing high pressures , what is you load info ? what kind of velocity are you getting with what bullet out of what barrel?