I acquired this rifle with a broken firing pin and a burred chamber. I solved the chamber issue with a chamber iron and now it feeds. Bought the upgraded firing pin and hammer kit from Numrich and fitted them. Basically just filed the "T" on the pin till it fit the slot. Then it would chamber and fire a round but not extract it. So, I figured the firing pin needed to retract into the hammer enough not to eject the round into the chamber so I filed just enough off the back of the "T" so I could push the pin back flush with the bolt face and then it wouldn't fire any more. If it doesn't use some bit of inertia to fire the pin and let it retract, then I'm not sure how it would be possible to extract a round as the pin pushes it out of the extractor. Any help or advice would be appreciated...well, constructive help that is:) Here's some picks. The front half is the bolt and the rear part is the hammer with the pin "T'd" into it. Its semi-auto and the trigger releases the rear hammer/pin, both come back. Releasing the trigger releases the bolt to go into battery and pulling it again fires ( should fire) the round and repeats the process.

Is right where it slides under the extractor, it was tight before and I filed the top of the pin there enough to let it slide freely thinking if there was any drag it would act as a brake and limit pin travel/striking force. I think I might have gone too far and it might be riding up and only barely hitting the rim. The firing pin depth is so shallow its hard to tell. I think I'll take it to work tomorrow and use a punch and hammer to usage that surface out and then very cautiously remove metal just till its free. Other than that I'm at a loss.

Rob, what are you talking about when you say that it won't extract? Does it leave the case in the chamber or does it pull it out partially and drop it in the action?

The reason I ask is that Dad had a Marlin 25 when we were growing up. It was marvelously accurate but extraction was iffy at times. It had the same type of extractor setup, from what I recall. At the time I didn't know much about filing on guns and such, but today I'd give that extractor a few strokes with a fine file to see if I could get it to bite into the rim a bit when moving backwards. I don't think the extraction issue is related to the firing pin issue. Methinks they are separate problems. Once you get it to fire, take a look at what it would take for the extractor to grip that rim long enough to get it out and toss it a ways.

Because the firing pin didn't retract it would spit the case out of the extractor. Until making the pin retractable a round couldn't even fit into the extractor. Now it extracts perfectly but the pin isn't hitting the case hard enough or straight enough or something. I was thinking the pin was riding up over the case but the receiver has a little spring loaded wedge that rides in the bolt groove from the breech face toward the rear that would essentially sit on top of the firing pin and direct it down into the rim. I wondered what that was and now I'm pretty convinced its for that purpose. Maybe I can take a picture of it tonight and post it.

That style of extractor has issues - in my opinion and experience. Don't have one on hand to play with right now, but from memory, in the manual bolt model 25 this was a problem and I always had a pockeknife along to pry empties out with. Take a look at the lip of the extractor and maybe make it a bit "grabbier", or not.

That is identical to yours except it is a 187M. Gun is missing internals to make it semi auto. Numerich parts lists are the same. Would be happy to mail you parts if needed.

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