1939 P.08 42 Code Firing When Chambering Round

tmoncmm · 04-12-2007, 05:57 PM

Hi all,

My 42 Code 1939 is firing when chambering hollow point rounds. I have not had this happen with FMJ.

Everytime I have chambered a round of FMJ (mamby 10 times) the gun does not fire, but about half the time when chambering hollow points, the gun will fire. Anyone heard of this or know why this is happening.

My guess is that the hollow points are longer and do not chamber completly which somehow causes the firing ping to contact the primer.

The funny part it that it will fire the round when the toggle is released, but then will chamber the next round fine.

Any insight would be much appreciated.

Quentin · 04-12-2007, 06:17 PM

Wow now that's scary! I'm sure someone else with more experience will have a better answer but it sure sounds like the firing pin is a little too long or its spring is weak and lets it fly forward too far just from inertia.

After a trigger job my 45ACP went full auto and emptied the magazine, 7 seven shots in a couple seconds sure got my attention!

Hope yours is an easy fix like the 45 was. That's weird that it only happens with hollow points. Can't see how that would matter as far as the primer and firing pin are concerned.

policeluger · 04-12-2007, 06:25 PM

For the both of you, its a matter of correct sear/hammer, or you tmoncmm correct sear/stricker faces surface and alignment.....best to ya

Quentin · 04-12-2007, 06:56 PM

You're absolutely right policeluger, a new sear fixed the 45. Hope your fix is as easy, tmoncmm!

04-12-2007, 05:57 PM	#1
tmoncmm User Join Date: Apr 2007 Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts	1939 P.08 42 Code Firing When Chambering Round Hi all, My 42 Code 1939 is firing when chambering hollow point rounds. I have not had this happen with FMJ. Everytime I have chambered a round of FMJ (mamby 10 times) the gun does not fire, but about half the time when chambering hollow points, the gun will fire. Anyone heard of this or know why this is happening. My guess is that the hollow points are longer and do not chamber completly which somehow causes the firing ping to contact the primer. The funny part it that it will fire the round when the toggle is released, but then will chamber the next round fine. Any insight would be much appreciated.

04-12-2007, 06:17 PM	#2
Quentin User Join Date: Apr 2007 Location: NorthWest USA Posts: 124 Thanks: 59 Thanked 11 Times in 4 Posts	Wow now that's scary! I'm sure someone else with more experience will have a better answer but it sure sounds like the firing pin is a little too long or its spring is weak and lets it fly forward too far just from inertia. After a trigger job my 45ACP went full auto and emptied the magazine, 7 seven shots in a couple seconds sure got my attention! Hope yours is an easy fix like the 45 was. That's weird that it only happens with hollow points. Can't see how that would matter as far as the primer and firing pin are concerned.

04-12-2007, 06:25 PM	#3
policeluger RIP Join Date: Jun 2002 Location: Ca. Posts: 2,141 Thanks: 8 Thanked 89 Times in 54 Posts	For the both of you, its a matter of correct sear/hammer, or you tmoncmm correct sear/stricker faces surface and alignment.....best to ya

04-12-2007, 06:56 PM	#4
Quentin User Join Date: Apr 2007 Location: NorthWest USA Posts: 124 Thanks: 59 Thanked 11 Times in 4 Posts	You're absolutely right policeluger, a new sear fixed the 45. Hope your fix is as easy, tmoncmm!