I have some CCI Standard Velocity brass that I hadn't yet recycled that I just dug out that had been fired with my PPQ .22. Same issue with those as with the Mini-Mags. Don't know what the problem is but I got an email from Walther that says they received the pistol, so that's the first step.Hmm, curious - I am seeing exactly this, but with CCI standard velocity rounds. Was wondering what's going on.
That said, I just dropped one spent empty shell (with a bulge) in, which of course didn't drop all the way due to bulge, then pulled the trigger. While hammer did drop, striker didn't hit the cartridge, so some sort of safety feature must have kicked in.
On a related matter, I just had a failure to fire, repeatedly (over 3 cartridges until I gave up). All cartridges that failed to fire didn't have any striker marks on them at all. I looked at the drop safety catch and it *might* have been in a way for these hits somehow (???), as its bottom corner looked like it may have been hit. I never dropped the gun, so that couldn't have been the cause.
The gun was dirty (probably after ~400-500 rounds fired over ~4 weeks), so it might have been that, but immediately before these failures to fire it worked just fine (it happened in the middle of a comp).
Update: looks like the firing pin spring (part #28) broke, as the pin is not returning all the way back. Oh, well - off to the dealer to get it fixed! I shot probably ~3000 rounds since new, but still, wasn't expecting this!