Weak Primer Strikes

John Sabato · 04-14-2011, 06:08 PM

If cycling a misfired round through the loading sequence gets it to fire the second time around then there is do doubt that the firing pis is striking the case primer. The issue that your masking tape test does not address is whether or not the momentum and depth of the strike is adequate.

The only way you can adequately test this would be to trade firing pins with a reliable shooter Luger and see if it makes a difference. If it does not, then try swapping the firing pin springs and test.

If the gun is now reliable then you have found your problem. The problem will likely also appear in the gun you borrowed the parts from. Let's us know how it goes when you test.

www.prussia.us · 04-14-2011, 07:53 PM

THANKS

That is some great advice, I really appreciate it. I will act on the suggestions then in a few weeks be able to test fire and report back.

04-14-2011, 06:08 PM	#1
John Sabato Lifer Lifetime Forum Patron Join Date: Jun 2002 Location: The Capital of the Free World Posts: 10,156 Thanks: 3,003 Thanked 2,308 Times in 1,098 Posts	If cycling a misfired round through the loading sequence gets it to fire the second time around then there is do doubt that the firing pis is striking the case primer. The issue that your masking tape test does not address is whether or not the momentum and depth of the strike is adequate. The only way you can adequately test this would be to trade firing pins with a reliable shooter Luger and see if it makes a difference. If it does not, then try swapping the firing pin springs and test. If the gun is now reliable then you have found your problem. The problem will likely also appear in the gun you borrowed the parts from. Let's us know how it goes when you test. __________________ regards, -John S "...We hold these truths to be self-evident that ALL men are created EQUAL *and are endowed by their Creator* with certain UNALIENABLE* rights, and among these are life, LIBERTY, and the pursuit of happiness..."*

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04-14-2011, 07:53 PM	#2
www.prussia.us User Join Date: Oct 2009 Location: NY Posts: 40 Thanks: 2 Thanked 0 Times in 0 Posts	THANKS That is some great advice, I really appreciate it. I will act on the suggestions then in a few weeks be able to test fire and report back.