Thread: Roll crimping 308 subs

Greetings @Bobba,
I am a little confused on the need to crimp your cast sub loads in your .308. Crimping is usually needed to stop the projectile from moving in the case due to recoil or pressure from the spring in a tube mag. Neither of these is likely to be a problem in your sub loads. In some pistol loads the crimp is needed to get a decent powder burn but as before not applicable here. Best results from crimping are often gained by crimping as a seperate step as you suggest. Test both ways before going to crimping.
Expect the primers from your fired sub loads to be backed out of the case a little. This is the result of the low pressure of your loads and nothing to worry about. Starting with cases previously fired in your rifle and neck sizing only will help with this. I would be interested to know your powder load.
Regards Grandpamac.