Of my three Kahr pistols, the PM45 is my favorite. I just shoot it better than the P380 or PM9. The PM45 likes high power rounds, mine won't cycle 100% with powder-puff loads.
I reload on the hot end of the scale with a COL of 1.250 but can go as long as 1.300( max mag. size) and still feed OK.
I have more than 3600 rnds. through mine.
KP3833N, PM9093N new slide, PM4544N, PM4543N, XD9SC, P22