Dean, sounds like your press needs a slight adjustment.
Was unhappy with some of my crimps recently after switching to a different hull. Dug out the MEC hand book, an allen wrench and a twiddle here and a twiddle there, crimps look like factory now.

If you have a hole in center, you need more starter crimping.
__________________

"Double guns are a sport and a pastime built into a beautiful package to which I attach myself when entering the great theater of autumn, those days now grow more precious because we are given so few".. Robin Lacy