How long is a 10/22 firing pin?
I think I have a short one. Either that or it isn't protruding far enough from the bolt face. Anybody know either measurement?
More specifics: It's a brand new gun. 10/22-LVT. No mods. . . yet. I really like the look and feel of this one. Had it out for the first time a week ago and put about 350 rounds through it. Maybe 200 of them went off. All had what appeared to be light primer strikes including the ones that did fire. Started with bulk Rem sureshot ammo and blamed that until I got the scope where I wanted it and switched to minimags and wildcats. The problem never went away. The one 25 round mag that I counted had 15 FTFs. At one point I picked up about 50 of these "duds" and put them all through my trusty MkII and they all went bang.
Took it apart when I got home and just pushing the firing pin with my thumb it only sticks out the of the bolt face about .052". The firing pin in the MkII protrudes much further. I'm away from home and lacking all my tools (I hate that) but got a cheap caliper and without removing the pin from the bolt I got 3.375" on several tries. I'm going to nab a punch from work tomorrow and actually take the pin out of the bolt. The face of the pin is also quite rough as if it has chipped or just poorly finished. Maybe it's supposed to look that way?
Edit: All the pin strikes look the same. Fired or not. They look weak without defined edges. Which is what the end of the firing pin looks like. The pin is not smooth flat and has no square edges.
This rifle is new new. As I understand it it's a 2010 distributor special and Buds Guns Shop in Kentucky never had it out of the box. Their web site said it was not available for in store purchase.
I did clean it before shooting but have not had the firing pin itself out of the bolt yet.
I am aware of the fact that 10/22s can be dry fired without issue. The manual even says it's fine. However, I've had it such a short time that it's probably only been dry fired half a dozen times.
Here's a fairly close-up view. Super Macro is cool. It's amazing what shows up with a camera that can do that.
My new semi-functioning toy.
More specifics: It's a brand new gun. 10/22-LVT. No mods. . . yet. I really like the look and feel of this one. Had it out for the first time a week ago and put about 350 rounds through it. Maybe 200 of them went off. All had what appeared to be light primer strikes including the ones that did fire. Started with bulk Rem sureshot ammo and blamed that until I got the scope where I wanted it and switched to minimags and wildcats. The problem never went away. The one 25 round mag that I counted had 15 FTFs. At one point I picked up about 50 of these "duds" and put them all through my trusty MkII and they all went bang.
Took it apart when I got home and just pushing the firing pin with my thumb it only sticks out the of the bolt face about .052". The firing pin in the MkII protrudes much further. I'm away from home and lacking all my tools (I hate that) but got a cheap caliper and without removing the pin from the bolt I got 3.375" on several tries. I'm going to nab a punch from work tomorrow and actually take the pin out of the bolt. The face of the pin is also quite rough as if it has chipped or just poorly finished. Maybe it's supposed to look that way?
Edit: All the pin strikes look the same. Fired or not. They look weak without defined edges. Which is what the end of the firing pin looks like. The pin is not smooth flat and has no square edges.
This rifle is new new. As I understand it it's a 2010 distributor special and Buds Guns Shop in Kentucky never had it out of the box. Their web site said it was not available for in store purchase.
I did clean it before shooting but have not had the firing pin itself out of the bolt yet.
I am aware of the fact that 10/22s can be dry fired without issue. The manual even says it's fine. However, I've had it such a short time that it's probably only been dry fired half a dozen times.
Here's a fairly close-up view. Super Macro is cool. It's amazing what shows up with a camera that can do that.
My new semi-functioning toy.
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If someone else doesn't jump in with the specs you need, I'll open up my 10/22 and see how long the pin is, or at least how long they were back when they first came out. Don't think there's been a change.
I assume light firing pin strikes? Has the barrel been removed?
A short pin could give you that problem, but so could a barrel that hasn't been properly reinstalled; a broken or weak mainspring; or simply a gummed up interior. More specifics might help.0 -
A lot of things could cause these problems.
Did you break it down and clean it out thoroughly?
I don't have the firing pin specs handy, but for what its worth, new factory pins only cost a couple bucks, if you want to try one:
http://www.midwayusa.com/viewproduct/?productnumber=693437&cm_mmc=Froogle-_-Gunsmithing - Gun Parts - Rifle - (Factory)-_-PriceCompListing-_-693437
"Match" type pins (titanium, altered geometry, etc) are available for more.
Edit:
Responding to below
a. The gun in question is brand new, and more important
b. Ruger 10-22 happens to be one of the few .22 designs where dry fire is actually OK; the design is such that the firing pin does NOT reach the chamber rim in dry fire.
One thing to do is to take a good look at the spent shells.
Are the ones that are NOT going off getting a good hard firing pin indentation (ie deep with sharp edges)? How about the ones that are?
If some are, and some aren't then the problem probably isn't the firing pin itself.0 -
You mentioned that the firing pin looked rough. Extensive dry firing of rim fire guns can peen the end of the firing pin resulting in shortning anor sticking of the damaged pin. 0 -
Beantowne, some "new" guns sit on dealers shelves for years where people can pick them up and dry fire them. 0 -
idahoducker,
"It's a brand new gun. 10/22-LVT. No mods. . . yet."
Guessing games are great but your first statement is the most telling.
Do the most logical and reasonable thing. Call Ruger 1st thing Monday AM and explain the problem to customer service or the technicians. They will want the gun back for repair or replacement.
Best.0 -
Are you sure the weapon is fully locking up each time before you pull the trigger?
Hey, regardless of that....I like nononsense's idea. Stop trying to shoot it and call Ruger tomorrow AM, package the thing up and send it home for a health check evaluation and repair. No FFL necessary to send it to them and they will return it to your door, adult signature required. very simple.0 -
Hmmm. I wonder if your firing pin doesn't move far enough? Maybe you might take a file to the oval so it'll travel further. 0 -
One simple thing to check is the Barrel Retainer, V-block part B-66.
If that is over tightened it will break & could cause the type of problem you describe.0
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