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#581277 10/03/20 10:47 AM
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A gunsmith friend of mine had a Brownells kit that he uses to test firing pins. The kit came with two metal shotgun shells of the popular gauges that you put a primer in to test firing pins after repair or replacement. Apparently I'm using the wrong search criteria but does anybody have one to sell or know a source for such item?
Thanks,

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My firing pin test kit consists of a roll of Scotch Tape. I stick a piece over the primer on a spent shell and pull the trigger. If the tape is pierced, the firing pin is working...Geo

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Originally Posted By: Geo. Newbern
My firing pin test kit consists of a roll of Scotch Tape. I stick a piece over the primer on a spent shell and pull the trigger. If the tape is pierced, the firing pin is working...Geo


I do the same with masking tape.

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Why not just use an empty hull and replace the primer with a new one. A piece of tape would work but maybe you want to see how deep the impression is. Too short you get Failure to fire and too long you get a pierced primer.


So many guns, so little time!
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Originally Posted By: builder
Why not just use an empty hull and replace the primer with a new one. A piece of tape would work but maybe you want to see how deep the impression is. Too short you get Failure to fire and too long you get a pierced primer.


That would work too, Builder. Just easier with tape. I can check a FTF shell and tell if I'm getting a light strike or a pierced primer...Geo

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Just hold a penny over the pin. if it leaves a mark there is enough power.

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Thanks for the responses. That kit is not easy to find. If others have one to sell pm me.

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I drop a 2” section of solid brass rod down the bore, hold the gun vertical and pull the trigger. If it has a good firing pin and spring the rod will jump noticeably in the bore. You can also determine how strong the spring is. If it’s just a wimpy jump the spring is probably too weak or firing pin too short. Great item to carry when looking at guns at gun shows, etc. If the fall of the hammer sounds normal but the rod doesn’t jump then the firing pin has a problem.


If we feed our faith our fears will starve, if we feed our fears our faith will starve.
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I use a dowel rod. I place the end on the breech face over the hole and pull the trigger. You feel the impact and can see the indentation.

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An old gunsmith friend of mile just held his finger over the firing pin on doubles and single shot shotguns. For pumps and autos, he sacrificed a shell, out the side door to the shop. I have thied the finger trick, it makes an impression on you.
Mike

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