NEW RIA 1911 .45 15 years ago. Hammer following. Disconnector burred. Deburred it. Perfect since.
PF9. Two shots, third round would nosedive. Ammo brand, bullet style, weight, didn't matter. Nosedived third round. Sent back, they say they did stuff, tested it, all OK. Still would nosedive third shot, once again, ammo brand, bullet style, weight, didn't matter. Called it my two-shot derringer with a handy compartment for extra ammo. Full disclosure to next person, my son, but he says it worked perfectly. Too small for my big hands?