I am experimenting with Power Pistol. The top three are my normal load, 3.9gr TiteGroup using .356 Eggleston 115gr OAL 1.149. The bottom two are the same except using 5.0 gr Power Pistol.
The Power Pistol primer pits are definitely bigger, maybe twice as much. No rim on the pits but definitely bigger. No question the brass is hitting the striker a lot harder.
Too much? The weird thing is the kick didn't feel any different. I also noticed a bright white flash.