Help with a bolt action not firing

[Saltwater60]

I have an old mossberg 340 k that I found in the drop ceiling of my old houses basement 10 years ago. It never worked. Now that my kids are getting older and into shooting and I'm teaching friends, family, members and thier kids how to shoot another .22 would be great. Especially for the price. So I investigated it today and everything seems to be functioning except nothing is making contact with the bullet to strike the primer. The trigger releases and the firing pin moves forward it just seems like it's too short so it won't strike the bullet. I'm assuming the firing pin broke. Anyone know where to get one and to verified this is the problem. I took some pictures. There is a gap in the first one and you pull the trigger and the gap disappears I'm assuming that's the firing pin moving forward. Then you can see from the other photos there is a step in the bolt in assuming that's where the rest of the firing pin should be and strike the bullet casing to fire it. Other question I have is am I better off getting a new bolt for $65 or am I better off replacing the firing pin. They seem to be about $12.00. I'm not sure how to take apart the bolt. Als the barrel is abi rusty bores pretty clean a few spots. Is it worth rebuluing or just leave it. I'm not thinking it's worth paying a guns smith for any of this so if I can't do it myself probably not worth it. Fire away boys and let men now your thoughts. Thanks.

 

[kev74]

A new bolt would have to be fitted to the rifle for proper headspace. Just replace the firing pin. The length of the firing pin might have to be adjusted. Have a gunsmith do it if you're not comfortable with doing it.

 

[Saltwater60]

What's the best way to take the bolt retaining pin out. Is there a special tool?

 

[GOYABEAN]

Have you tried 340KA. Accessories | Numrich Gun Parts pretty sure there's a few videos available out there also

 

[kev74]

If its a regular pin it should just punch out. Use a punch the same diameter as the pin.

 

[meketrefe]

It seems you might have a bad firing pin. In any case you should have spares for firing pin and extractor.
Both easy fixes and part of preventive maintenance. Fix the pin first and then you can get a couple of extra parts
to keep servicing the rifle. and don't throw the old one in case it can be fixed. Sometimes it could be particles or gunk
accumulated between the firing pin stop and the firing pin.

Factory Original Firing Pin Mossberg 320, 321B, 340B, 341, 342 & 346 Type 3 | eBay

 

[Saltwater60]

I found the firing pin an numrichs for like $20.00 and I'm sure it's broken after inspecting it better and seeing the replacement part. Thanks guys. I'll look around.

 

[Saltwater60]

No pun

If its a regular pin it should just punch out. Use a punch the same diameter as the pin.

No punching this out it's like a bar with a ridge on it and the bolt needs to be taken apart and slid out the back. Thanks though. I wish it was that easy.

 

[Saltwater60]

I got the bolt cap off and wow was it a bitch and a half. I had to use a torch to get it off. I did not hear it too much since I did not want to change the temper. So for about $20.00 I can fix it. Turns out it was the broken firing pin for sure. It's hard to see, but in the picture the tip is broken off. I'm a bit proud of myself and I've always liked this riffle for some reason. I'll be happy to shoot it.

 

[Saltwater60]

I got the firing pin today and while it looks a bit different than the one that was in there originally it appears to be working. It will slide nice and it will stoke the firing pin. It seems they added a little bit of back bone to strengthen it. I'm ok with that. The bolt is back together and functioning well. Now my bluing gets here Tuesday. Damn hazardous shipping restrictions. Takes a week to get here. Barrel and everything is stripped, wiped down with acid, then wiped down with alcohol to degrease. I'll do another degreasing when I get the bluing. I'm pleased so far. It was a fun project and good learning experience.

 

[thegatman]

Good luck. I hope it's a collector item.

 

[Saltwater60]

Good luck. I hope it's a collector item.

No collectors item. Really it's only worth $150-$200. I just do this because I've been teaching some friends and family members to shoot. Now my friends kids are getting old enough to learn. It's a gun I can hand them that's safe and if they scratch the stock I don't really care. Also I hear they are super accurate so it will be a nice squirrel hunting gun for me or whoever else wants to use it. Again if it gets scratched up or whatever no big deal.
I'm not sure if I said, but it's a mossberg 340k and I found it in a drop ceiling of my old house about 10 years ago. Has an old scope too. It's a neat looking riffle. I always liked it and never even thought about fixing it until last week. I hurt my back at work and it's cold out so I was bored and looking for something to do. I'm sure glad I did. Well at least for now. We will see how the bluing comes out. I got the good stuff from brownells. It's supposed to be the best.

 

[Saltwater60]

I got her done tonight. It looks great in my opinion. The barrel came out super even honestly. I was a bit worried since the small parts came out good, but not great. So I was worried about the barrel. Nope perfect in my opinion. A bit of pitting here and there from the rust, but it's barely noticeable. I'll get her back together in a few days. I want to let it sit.

 

[kev74]

Nice work!

 

[GUNSICK]

Looks great. What blue did you use?

 

[Saltwater60]

The oxphoblue from brownells. I used the cream. Direction said nothing about hearing. I heated small parts, but not barrel. I spread it on with cotton and then rubbed it with 0000 steel wool to even out color. Worked great.

 

[meketrefe]

IT is looking nice. New life to an old peg.
I have a couple of those salvage operations I need to fix and perhaps shooting one day.

 

[Saltwater60]

IT is looking nice. New life to an old peg.
I have a couple of those salvage operations I need to fix and perhaps shooting one day.

Honestly I was scared to do it, but it did not work and was not worth giving to a gunsmith. So I said what do I have to loose. I'm not sorry one bit. I'd do it again in a heart beat.