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SchwarzStock
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Sharps mis-fire
May 4th, 2010 at 10:26am
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I recently acquired a Shiloh that mis-fired almost everyother round on my first outing. I immediately thought perhaps the firing pin was broke so stopped shooting after 15 rounds. At home I pulled it apart and found there were two springs in the breechblock. One was the usual small spring in the actual firing the pin and another larger diameter spring was between the block and the firing pin where it could be seen from the side of the rifle when the hammer was at half-cock. This larger spring was setting in a recess cut for it in the block. My C. Sharps 1874 does not have two springs and I don't recall seeing two in any other Sharps replica. Since the rifle has some questionable history I don't know what to think, Anyone ever see another 1874 model with two firing pin springs?

I removed the larger one and will give it a try on Sunday suspecting the problem has been cured.

SS
  

If your rifle is not in 7.62 and you can't hit what you are aiming at with de-linked machinegun ammo you are a pretender.
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John Taylor
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Re: Sharps mis-fire
Reply #1 - May 4th, 2010 at 11:28am
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The firing pin should have a little "hump" sticking out on the right that hit the frame and is cammed back when the breach is lowered. There is a cut in the frame that allows the firing pin to move forward only when the breach is closed. There should be no need for a spring if everything is working properly.
  

John Taylor   Machinist/gunsmith
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SchwarzStock
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Re: Sharps mis-fire
Reply #2 - May 4th, 2010 at 12:42pm
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JT,

The spring is required with the two-piece firing pins since the cam on the dog-leg shaped piece will not pull the pin itself back.

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John Taylor
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Re: Sharps mis-fire
Reply #3 - May 4th, 2010 at 3:27pm
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The one spring on the firing pin should be all you need. Make sure it is not binding anywhere and moves free.
  

John Taylor   Machinist/gunsmith
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