A friend and I are going to build 6.5 Lapuas. I was wondering if it's feasible to run 308 match brass and/or 260 Rem into the 6.5X47L sizing die. Would it require neck turning at all? I ran 308 brass in my 260 die w/o any problems BUT, I wasn't setting the shoulder back 4mm either. I've got a lot of 308 and 260 brass hence the question.