hey guys, I want to start turning my necks for my .30-06. I have a ball mic and a forster outside hand neck turner coming in the mail. question is how much do I cut without getting to thin? I'm using winchester brass and using calipers (i know not that accurate) I get measurements from .0115 to .015 in thickness variation. I was thinking of turning to uniform the brass to .012. Would that be too thin??? Using a Lee collet die to size the necks.. Thanks in advance guys.