just started fire forming

[wyobohunter]

I've always full length resized untill now. I just bought neck sizer dies for my two bolt actions. My question is, after I've fire formed my cases do I need to push the shoulder back occasionally or will my chamber keep the head space correct automatically? I'm shooting a 30-06 Sprng and a .338 RUM, Thanks.

 

[hodaka]

For most of my loads the brass splits or the primer pockets feel too loose before I need to bump the shoulder. I would suspect you would feel hard bolt closing when you need to use the full length die but I bet you get 5-10 reloads before bumping. Naturally there will be tons of variables in how each rifle behaves.

 

[wncchester]

"...do I need to push the shoulder back occasionally..."

Yes.

 

[wyobohunter]

Is this accomplished by simply running my cases through the full length sizing die? Thanks for your help.

 

[hodaka]

Yes, one pass through the full length die, then check your OAL, and things are back to standard size.