I'll add my most recent experience with defense loads in my PCR. Sunday, I shot up 85 assorted 124gr 9mm hollow points- Golden Saber, Critical Defense, HPR, and 50 rounds of 147gr HST. All fed, fired, and ejected, from CZ 14rd and MecGar 16rd mags. Pistol has CGW 11.5 lb hammer spring and extended firing pin.
I installed the tritium front sight from my SP-01 Tactical and went to 147s to bring the point of impact up a little.
YMMV