I am loading Lake City 7.62 brass that was bought new and is now once fired by me in a new M1A. I can't get the stripped bolt to close on the resized case and I have the die (RCBS small base .308) adjusted to the point of significant cam-over. The lowest headspace measurement I can get is 1.626" The brass as new measured 1.622" and passed the bolt test with no problem. Springfield includes a card with the factory set headspace and it claims 1.632". I reassembled the rifle and allowed full bolt thrust to chamber a case measuring 1.630" and when I ejected and measured the case it was 1.622"
Any suggestions as to what's going on?
Any suggestions as to what's going on?