Re: More load testing today, have questions (308win)
turn (polish) the mandrel on the Lee down to whatever size you need or, call Lee and order a smaller OD mandrel.
Re: anyone use 308 maching gun brass for a bolt gun
I do, I have some LC 66 that I fired out of an M60 circa 1978 that I'm still loading. Also have some RA of the same vintage. I full length size with a standard RCBS die ans anneal. YMMV