I shot some 120 gr PB with 7-8 gr 700X in my Krag and thought about doing the same with my .308. BUT, I had heard that it can cause 'setback" on the cases, unless you drill the primer holes?
Is this for real? While I do have a mess of .308 brass and could dedicate 50 rnds or so for this, I just hate to screw around with my brass.