I have just read an article on reloading the 300 win mag. It talked of fire-forming new brass as the cases were sloppy ( as Murphy had previously mentioned) which apparently causes the cases to stretch above the web and limited case life. I can only assume that full length resizing will take the cases back to their “sloppy” condition. Neck sizing would work, but I wouldn’t want to neck size for hunting rounds. So what is the answer? Have a set of precisely formed brass for practice and separate looser set for hunting to ensure function in less than ideal conditions?
What do you all do? How do you set up your dies? What happens if your chamber is reamed to max SAMMI specs and your dies are min? or vice versa? I have always used RCBS dies cause that’s what I have and they have been just fine for standard cartridges. Are for instance Redding dies more precisely machined?
Thanks for any input, Cheers.