[Wolfebyte]

Evening,

While wiping down my rifles, I pulled my grandfather's Remington TargetMaster Model 510 out of the case..

the action is slipping.. if you pull the bolt back, the firing pin engages, but it falls when you shut the bolt..

if I place it in safety before shutting the bolt, it will work fine.

What part do I need to replace/repair to make this safe again?

Not sure of the year.. on the barrel right side, forward of the receiver it looks like upside down 93 with the 3 being closer to the receiver. On the left side, it looks like an OL ? I know I've been shooting it since I was 6, so that's 43 years ago. My dad shot it before he got his Winchester pump 22 in 1958.

[Jim K]

I suggest taking the rifle out of the stock and giving it a good cleaning with a spray cleaner or a sonic tank if you can find one. If that doesn't correct the problem, you might have to replace the sear or the firing pin in the bolt. Botn parts are available from www.gunpartscorp.com .

Jim

[Firehand]

Agree with clean it thoroughly first. Sounds like the trigger may either be sticking a touch, or may have some crud built up on the 'hook' that engages the striker.

Might try this: Take the action/barrel out of the stock, remove the inner magazine tube, and either soak the receiver in mineral spirits or flush it out with brake cleaner, work over everything with a brush and then flush again; let dry thoroughly, and try working the bolt. If still does it, may have a mechanical problem

[Jim K]

I agree with all that except for taking out the inner magazine tube, which would probably be difficult as the 510 is a single shot. ;)

Jim

[Clark]

Doing a trigger job on a 510 is hard, and if it is over done, that is what happens.

If you could get it apart and TIG weld a tiny spot where it is worn down, and then grind it into shape, it would be back to normal.

It would help to have a spare one to look at and swap parts.
40 years ago that would be $15.
12 years ago that would be $60.
Now it may be $120.

http://i757.photobucket.com/albums/xx220/ClarkM/PaulHuntingSquirrellsDSCF0022.jpg

They are very accurate for what they are and some of us are hoarding them.

[Reloadron]

I got my Remington 510P when I was 10 years old. That was 50 years ago and it was my very first rifle. My grandfather and uncle took me hunting in the Catskill Mountains upstate NY. My uncle's friend handed me the rifle and while the grown ups hunted deer I dragged the little rifle up and down mountains all morning every day. My fun came in the afternoons when they set up targets for me and I got to plink. When we left after a long Thanksgiving Weekend my uncles friend Charlie gave me the rifle.

About 10 years ago my uncle turned 75 and there was a big family party in NY we went to. Charlie was there and joked about my first hunting trip. I told him I still have the rifle!

Fortunately there are still parts available including trigger kits for those whose trigger jobs have gone south as Clark mentions. My Remington 510 and 511 are likely the two most accurate .22s I own and shoot circles around my son's Ruger 10/22.

Ron

[Wolfebyte]

Thanks guys! ..

I'm not attempting to take apart the bolt ..yet. . I cleaned it with some gun scrubber and oiled it.. It maybe does it 1 out of 10 times now instead of every time..

and yes, I concur with the accuracy of it.. My son likes to spray and pray with his semi auto.. I prefer to bark a squirrel the way I was taught..

Clark, where would trigger kits be found? ...

[Reloadron]

I see a few places like this one (http://www.gunauction.com/search/displayitem.cfm?itemnum=8216548) advertising trigger kits for the Remington 510, 511, 512 and 513 series rifles. I have no clue how good these "Patriot" trigger kits are. Numerich Gun Parts Corporation (http://www.gunpartscorp.com/catalog/Search.aspx?filter=remington%20model%2012&catid=4276) also has some parts for the 510 including trigger spring.

Ron

[firesky101]

As for your date of manufacture. Remington says the 510 was first at market in 1939 and discontinued in 1962. If that is a OL on the left side of your barrel than date of production falls in July of 1942. I have never looked into it, but I just always kind of assumed that commercial production of firearms was put on hold during WW2 to devote everything to the war effort. You learn something new everyday.