Went to the range today to see how a slightly smaller bullet would do in my 1911. Took 100 rounds, if it doesn't lead after 100 rounds it isn't going to.
Shot 5, changed mags and click. Recycled hammer, click. Dropped magazine, ejected round. No dent from firing pin. Oh crap.
Came home expecting to find a busted firing pin. Nope, pin is fine. Looks good on both ends.
Changed firing pin springs and recoil spring, it was time.
Got to looking at things and low and behold, it was the over sized firing pin stop causing issues. It was tall enough to hit the bottom of the rear sight. Wait, this started after I cranked the rear sight down at the range. Hmmmm, seems the rear sight pushed the stop down enough to create an interference issue with the firing pin. Pin never rebounded enough to be struck by the hammer. Old and weak firing pin spring didn't help any.
Stripped the slide completed, cleaned it all well, and shortened the top of the firing pin stop. All seems fine now.
Odd that this took so long to become an issue. I replaced the firing pin stops years ago, at least a few thousand rounds ago.
What the hell, decided to strip the slide on the CZ 75 too. Gonna get dirty cleaning one, might as well clean two.
Shot 5, changed mags and click. Recycled hammer, click. Dropped magazine, ejected round. No dent from firing pin. Oh crap.
Came home expecting to find a busted firing pin. Nope, pin is fine. Looks good on both ends.
Changed firing pin springs and recoil spring, it was time.
Got to looking at things and low and behold, it was the over sized firing pin stop causing issues. It was tall enough to hit the bottom of the rear sight. Wait, this started after I cranked the rear sight down at the range. Hmmmm, seems the rear sight pushed the stop down enough to create an interference issue with the firing pin. Pin never rebounded enough to be struck by the hammer. Old and weak firing pin spring didn't help any.
Stripped the slide completed, cleaned it all well, and shortened the top of the firing pin stop. All seems fine now.
Odd that this took so long to become an issue. I replaced the firing pin stops years ago, at least a few thousand rounds ago.
What the hell, decided to strip the slide on the CZ 75 too. Gonna get dirty cleaning one, might as well clean two.