I was having the same problem. I polished up the feedramp and it got better, but was not perfect. Someone on this board suggested Federal Hy-Shok (not Hydra-Shok) 115gr. JHP 9-BP. Of all the hollowpoints out there this one has a bullet tip that is almost like a FMJ. The Federal 9BP performs flawlessly in my P-11. I also have some Crobon PowR'Ball on order and understand it feels very reliably.