OK, here's the update. I was back at the range today with my baby girl, and she went thru another box of CCI mini-mags. There were 2 fail-to-fire rounds. We reloaded those, along with the others from last time, and all fired.
I suppose this is just finicky P22 behavior. We had loads of fun.
I suppose this is just finicky P22 behavior. We had loads of fun.