Were you getting good indentations on the primers or were they hardly showing anything? If it is a gun that will fire slightly out of battery, you could be getting very light dents on the primers because the gun is not locked up. That could be the stiffness of a new gun or it could be something like long brass, not enough of a taper crimp, bullet profile, tight chamber, light load, limp wrist, etc. Or, there could be gunk in the firing pin channel.
I would shoot full strength factory ammo in it first, then duplicate those loads if they work. Then change variables from there. I went through that recently with a couple of new Glocks. It took a while to figure out what they like, and the dual recoil springs needed to loosen up a bit. I didn't experience any light strikes, though.
Last edited by Cheyenne; 06/11/12.
