My 15+ year old P9 used to be reliable, and it still is with most ammo. My carry ammo has always been Speer Gold Dot 124 grain +P and it functioned without any issues, but recently it has started failing to eject and trapping the empty case between the top of the breech and the barrel hood. I had hoped a new recoil spring would fix the problem, but when I tested it with the new spring I had the same problem with the regular pressure version of the same ammo 4 out of 20 shots. Oddly enough it shot Remington 115 +P flawlessly.
The difference in length between the old and new recoil spring made me hopeful it would fix the problem.
What’s next, a new extractor spring?