PMP 9x19 is junk, IMO. I actually gave away some of what I had because it was weak, inaccurate and has a nasty, sparking muzzle flash which is otherwise typical of Russian steel-core ammo.
Their 223 seems very accurate, reliable and consistent and is my tops choice, esp. with decent prices. Finally found it in several places and got another case, plan on getting several more. Chrono results would be appreciated...but I doubt that the velocity variation between brands is all that drastic.