Oversize Firing Pin Damage

Kiwi Mark · 09-01-2017, 05:59 PM

Most of you will know this, but a reminder wake up.
Shooter Lugers. Too long a firing pin will piece the primer and if it doesn't have post 1933 gas by pass cuts, on firing the high pressure blows the firing back as it has a seal. This compresses the firing spring, blows the firing pin retainer out the back of the breach block. Very Sad.
A friend did this and when mine wouldn't fire after the 2nd shot, I picked up the brass and knew what the problem was.
OK, remove blue, a spot of weld, then dress it up with the Dremel,
All my shooter have these 3 gas by passes cuts in them. Not hard to do.
Prior to this happen, I expected that there would be so much pressure, it would blow the sear bar out and do some really bad damage.

09-01-2017, 05:59 PM	#1
Kiwi Mark User Join Date: Jan 2017 Posts: 23 Thanks: 0 Thanked 7 Times in 6 Posts	Oversize Firing Pin Damage Most of you will know this, but a reminder wake up. Shooter Lugers. Too long a firing pin will piece the primer and if it doesn't have post 1933 gas by pass cuts, on firing the high pressure blows the firing back as it has a seal. This compresses the firing spring, blows the firing pin retainer out the back of the breach block. Very Sad. A friend did this and when mine wouldn't fire after the 2nd shot, I picked up the brass and knew what the problem was. OK, remove blue, a spot of weld, then dress it up with the Dremel, All my shooter have these 3 gas by passes cuts in them. Not hard to do. Prior to this happen, I expected that there would be so much pressure, it would blow the sear bar out and do some really bad damage.

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