Originally Posted by -Jeremiah-
I read that part in the Lyman manual. I tried to make my cases pretty straight. I'll go a little farther and see if I can get a little bit of an inward curve. I definitely don't want to crease the plating. I've read that my accuracy will suffer if I over crimp. The bullets are in there tight. Resizing the cases made them nice and tight for the berry's bullets.
Your just going to have to experement and see. Don't be afraid to pull a bullet to check. Also, Use the dial calipers as a straight edge on the lip of the case. Hold it up to the light. You will see any outward flare easily like this. I shot a bunch of Rainer's with just a little crease. Eventually I adjusted it out but it worked ok like that.