This seems to be a common issue with that model and I figured that's what it was.Light Primer Strikes. Would not recommend this for a pocket 22 carry. Perhaps, a training pistol where you can diagnose failures and ready quickly again. Unfortunately, the failures are too numerous to even designate it as that. I have sent it back to the factory two times and between that time I installed a Galloway precision spring kit (a nuissance) and still the issues persist. New mags and new this and that and still nothing works. If you want to be pissed off and troubleshoot and think you’ve succeeded and feel good and then get pissed off some more in a vicious cyle, then this is the gun for you. Otherwise, I would stay clear.
One reason I like an exposed hammer for .22, but the only ones small enough that's easily available and affordable are the Phoenix and Beretta Bobcat. The Phoenix is heavy pot metal, but works, the Beretta has terrible sights and also seems to have issues.
I would just keep trying different ammo, you'll find a brand that has a soft enough rim eventually.