Peened firing pin?

[leam]

Taking Boopsie apart the other day for a bath and noticed the firing pin was slightly sticking in the stop. "This means something!" says I...

It meant the firing pin head had gotten slightly peened so that a ridge was feelable with the fingers. Also noticed some very small longitudinal cracks forming in the same area.

My first guess is just that the firing pin was old metal and swapped it out. However, I did want to ask in case there's something else possibly amiss. The main spring and recoil spring are factory weight, and there's an EGW FPS installed.

Thoughts?

Leam

[mikeydio]

The problem was with your firing pin that was improperly surfaced hardened. This year I had two like that in brand new guns. 200 rounds later they would not fire. I swapped them out for new Ed Brown hardcore firing pins and they each have been good for another 1,000 rounds with no evidence of peening.

Mike

[Dave Berryhill]

Like Mikey said, it's an issue with an improperly heat treated firing pin and the fix is to replace the pin with a quality part.

Sooner or later Boopsie would have stopped firing.

[Jolly Rogers]

Like Mikey said, it's an issue with an improperly heat treated firing pin and the fix is to replace the pin with a quality part.

Sooner or later Boopsie would have stopped firing.
Or if the pin stuck in the slide would it even chamber a round? Cause a 3 point jam??
Joe

[Dave Berryhill]

The ones that I've seen that have stopped firing have all been with the rear of the firing pin flush with the rear of the firing pin stop and not with the tip of the firing pin protruding from the breech face. Without any firing pin protruding from the rear, the hammer just hits the firing pin stop and the pistol goes "click" when the trigger is pulled.

[leam]

Well, it happened again! This one wasn't as bad but it seems like less than a few hundred rounds.

Off to Brownells to get something a mite harder...

Leam

[Baldy]

Brown or Wilson firing pin will cure it.