I just got a new P99c in 40 S&W with mepro night sights in. I've had a P99c in 9mm for a while but haven't been in love with it. The 40 S&W is perfect though! I warmed up with 100 rounds of WWB FMJ practice ammo through it with one light strike / bad primer which fired on the second strike. Then on to the main course which was 200 rounds of 155 gr DoubleTap HP. One bad primer out of them that took 7 strikes to fire. It fed every round flawlessly which beats the 9mm. Surprisingly, the recoil was nowhere near what I was expecting from all the impressions I've been reading. It really wasn't all that objectionable.