thekubiaks
New member
I am fireforming new brass (6.5 x 284 Lapua and Rem 7mmSTW) I am shooting what the manuals tell me is a moderate load. I am seeing a little bit of primer flattening on both cartridges. The 7mmSTW flattening is a little more noticeable than the 6.5 x 284.
The question is, since I am fireforming and the cartridge is expanding to the chamber, is there a little headspace "slop" that is allowing the rear of the cartridge to slam into the bolt face and flatten the primer?? I don't get any sticky bolt handles after firing. I plan to go back to the range with the fireformed brass and see if it will do it again but am I missing something?? Thanks for the replies.
The question is, since I am fireforming and the cartridge is expanding to the chamber, is there a little headspace "slop" that is allowing the rear of the cartridge to slam into the bolt face and flatten the primer?? I don't get any sticky bolt handles after firing. I plan to go back to the range with the fireformed brass and see if it will do it again but am I missing something?? Thanks for the replies.