How much shoulder bump is on for long term case life?

[DangerRanger]

I currently have 2 6.5 creeds, a heavy compish rifle and a tikka hunting rifle.

I know it’s imperfect, but I would really prefer all my loaded ammo be able to be used in any rifle chambered. Maybe that whole premise is flawed but I’m trying to streamline my reloading and ammo supply and this would be nice.

Anyway, one rifle is reading fired cases .007 over virgin the other is reading .002

If I just size everything to the smaller diameter (essentially the virgin norma I have) Do you think I’m going to have web separation issues before I have primer pocket issues and toss the brass from that anyway?

I’m used to by rule bumping everything .002 and having rifle specific ammo so it was never a thought to me.

 

[Vern400]

You can do it but it'll cut your brass life. And you'll never know which piece of brass is closer to end life until it splits. But yes 0.002 bump back from the tight chamber is your option, given your choice. Taking that logic to its extreme, bump the brass to SAAMI specs and it'll shoot in any rifle.

 

[Rathmatik]

Aside from the likelihood of case head separation, you would also probably have issues with the case body being tight in one of the rifles. Even after full length sizing, over time it will become tighter at the base. You could use a small base die, but that might also decrease the brass life. Not to mention that your barrels will prefer different powders, bullets, and loads altogether.

I'd recommend keeping them separate or you're pretty much losing the primary benefit of reloading, which is accurate ammo specific to your barrel.

 

[Lawnboi]

I’d keep them separate.

You may or not run into the problem of the body being too large even if headspace fits in both.

Not worth finding out one day when you can’t close your bolt.

.005 is a lot of bump.

I’d keep the brass separate. And leave my die, and get a set of Redding or area 419 shell holders to adjust bump between the two

 

[DangerRanger]

Bummer, guess this isn’t an area I’ll be able to streamline things. Thanks all