Quote Originally Posted by BillPa View Post
Pull the expander ( button, shaft et al) then give it a go. If the brass went in the die normally I suspect the problem is the expander when its pulled back through the neck-shoulder junction.

Try two or so then let us know.

Bill
I pulled the expander and ran 3 pieces of brass thru the press and didn't have a problem. I put the expander back in and ran 3 more pieces and could feel when the expander was going thru the neck both in and out but didn't have a problem with any deformed bases. everything went smoothly. the only difference between the brass now and the brass then is that it has been thru a tumbler and is now clean brass. so could it have been a tighter fit before when it was dirty? should I try lubing the expander button a little bit before resizing the brass?