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Sharps 1874 Firing pin

Discussion in 'Blackpowder' started by Afy, Dec 16, 2010.

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  1. Afy

    Afy Member

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    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.
     
  2. junkman_01

    junkman_01 member

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    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.
     
  3. Afy

    Afy Member

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    Its a known issue with the Armi Sport rifles.
     
  4. junkman_01

    junkman_01 member

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    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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