I've had my PM9 for two weeks now, put over 600 rounds through it without any problems whatsoever....It's a truly amazing gun, I love it..
Shot mostly Winchester white box 115 gr FMJ, Federal 115 gr FMJ as well as Hornady 115 gr Critical Defense, Speer Gold Dot 115 gr and 124 gr +P.
Not a misfeed or any hiccups the whole way.
As far as my carry ammo, it's the Gold Dot 124 gr +P's all the way. I'm a retired NYPD Sergeant and we carried the Gold Dot 124 +P's as our duty ammo and the performance is off the charts.
I understand the Federal HST 124 gr is excellent as well, but I'm sticking with the Speer.............