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 Post subject: FTF - Worn Firing Pin?
PostPosted: Sat Jul 25, 2020 7:47 am 
Field Grade

Joined: Wed Jun 11, 2014 6:43 pm
Posts: 71
I shot a round of sporting clays yesterday with my son. We were both shooting Winchester Super X Model 1's. Son had a FTF from a light primer strike. The gun he was shooting was one that when I purchased it, it looked like it had a lot of mileage on it and was "rode hard and put away wet" as they say. I had already replaced the o-ring, bolt buffer (which had disintegrated) and a recoil spring follower and cleaned the gun well.

Take a look at the back end of the firing pin? It is worn down on an angle. Is that the cause of the problem? And should I replace it with a new one?

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 Post subject: Re: FTF - Worn Firing Pin?
PostPosted: Sat Jul 25, 2020 7:58 am 
Crown Grade

Joined: Tue May 18, 2004 11:49 am
Posts: 5421
Location: Southwest Georgia, USA
Could be the problem but I would replace the firing pin anyway. Also clean out the channel the firing pin is in all the way to the front of the bolt. It is usually the tip of the firing pin that causes problems, not the rear end.


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 Post subject: Re: FTF - Worn Firing Pin?
PostPosted: Sat Jul 25, 2020 8:08 am 
Crown Grade
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Joined: Mon Feb 09, 2009 10:59 am
Posts: 6429
Location: Neosho, MO
Looks like the hammer mushroomed the back of the firing pin. Most likely from improper heat treatment or poor quality steel on the firing pin. I would also check the hammer (on the trigger assy) to be sure it is not deformed also. The replacement pin may or may not give problems eventually.

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 Post subject: Re: FTF - Worn Firing Pin?
PostPosted: Sat Jul 25, 2020 10:29 am 
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Joined: Sun Jul 27, 2003 3:37 pm
Posts: 19399
I wouldn't worry about a single misfire. It might have been the ammo. If you start getting repeated misfires, change the ammo. If it continues to misfire 2 or 3 times per 100, then you might need to do something to the gun.

I would start by disassembling the bolt and inspecting the parts and clean them thoroughly and lube them. If it continues to misfire, then you may need new parts... possibly a new hammer spring, or new firing pin. I'd also clean the trigger assembly in a container of solvent.

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 Post subject: Re: FTF - Worn Firing Pin?
PostPosted: Sat Jul 25, 2020 10:56 am 
Presentation Grade
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Joined: Wed Feb 09, 2011 8:12 pm
Posts: 585
Location: Oregon
Coop,

New firing pin and cut 3 coils off of the return spring.

CT


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 Post subject: Re: FTF - Worn Firing Pin?
PostPosted: Sun Jul 26, 2020 8:25 am 
Field Grade

Joined: Wed Jun 11, 2014 6:43 pm
Posts: 71
So, I removed the retaining pin and the firing pin didn’t pop out. I needed to gently pull it out with a pair of needle nose pliers. It does not seem to move freely in its channel. I am surprised that it didn’t fail to fire every time.

I ordered a new firing pin, spring and retaining pin kit from Nuline. While I am waiting, I am soaking the bolt components in mineral spirits. I’ll get her runnin’ again. I have three super X model ones. This particular one Looks like it was “rode hard and put away wet” before I got her. The bolt buffer was in crumbs. There was a bit of speckling on the receiver and obviously no one paid attention to the bolt group. But I love working on guns and have no doubt that I will get this one working flawlessly pretty soon. Some people just don’t like to clean guns or change the oil in their car. Gas guns are not for those kind of people.


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 Post subject: Re: FTF - Worn Firing Pin?
PostPosted: Thu Jul 30, 2020 9:18 pm 
Field Grade

Joined: Wed Jun 11, 2014 6:43 pm
Posts: 71
Here is the old firing pin on top and new one on bottom. I’d say the original is well-buggered

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 Post subject: Re: FTF - Worn Firing Pin?
PostPosted: Sat Nov 21, 2020 3:46 pm 
Utility Grade

Joined: Sun Nov 15, 2020 12:04 am
Posts: 18
Definately " rode hard",I would check all internals .Numrich arms is a great source of parts.




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