seating/crimping die combo

seating/crimping die combo

April 8th, 2018 at 12:16pm

I am using and RCBS seating and crimping die combo. The brass is caving on the upstroke. The seating adjustment on the die is all the was down with zero adjustment remaining. It seems the die should be longer so that I do not have to set the crimp so low on the brass because it looks like it is crimping to low and pulling on the brass on the upstroke causing it to cave. The brass basically has a dip in the mid section. The rounds are not cambering as well as they should. I have tried range brass as well as new brass.