Sharps 1874 Firing pin


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Afy
December 16, 2010, 02:23 PM
Broke the firing pin on my Armi Sport 1874. Guess the stress of 60+ grains of Swiss FFFG under a 500 grain bullet was a bit much.

Anyhow finally got my new firing pins via a friend in the US and swapped it out in under five mintes. Cant believe how ridiculously easy it was.

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junkman_01
December 16, 2010, 03:52 PM
I don't believe that the load or bullet weight put any more 'stress' on that firing pin than a light load would. It failed for another reason.

Afy
December 16, 2010, 04:01 PM
Its a known issue with the Armi Sport rifles.

junkman_01
December 16, 2010, 04:19 PM
It may be a known issue, but it is certainly not from the load you fire. Maybe the wrong type of metal or a machining issue such as an unrelieved angle, but not the load. The hammer strikes the firing pin the same whether there is a heavy load in the chamber or a light one. The firing pin doesn't know.

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