OK, I have some more info. I went to my range today and fired the remainder of the ammo through two identical P232's that I have and had misfires with both guns, so it's definitely not a dirty gun or firing pin issue. Second strike set off all but one round that required 3 strikes.
Before shooting the ammo, I measured most of the rounds at various places on the cases and they were almost identical. Some of the cases still wouldn't just drop in and out of the case gauge, but I couldn't determine any differences in measurements from those that dropped in easily. Maaaybe .001 difference now and then.
The only thing I remember doing different was loading the primers on the press this time rather than the hand-primer, but I'll be damned if I could see or feel a difference in
I'm going to clean all my dies and start from zero.