Marlin Model 57 .22 LR

[bucnball]

Bought the above @ the show a couple weeks ago. Took it to the range today . Very light  strike on the rim of ammo. Any good Marlin 'smith's near Knoxville ? Thanks !

[Oh Shoot]

Mark, here's complete breakdown, including bolt, if you haven't gone into it.

 

Bolt looks quite "10/22ish". Would seem if firing pin freely moves and channel crud isn't the prob, would have to be either spring needs stretching or replacing (maybe can substitute one from something else) or firing pin is worn down or chipped off on the end?

 

http://www.rimfirecentral.com/forums/showthread.php?t=350892

 

- OS

Edited February 8, 2016 by Oh Shoot

[Caster]

OS is on it. Give the thing a massive, invasive and thorough enema and try it again.

[Sidecarist]

While you have it apart look closely at the end of the firing pin. It should be flat on the tip, not beveled or chipped.

You can look at a fired case with a magnifier as well to see if the strike on the rim is uniform in shape, or distorted. If it is distorted looking it may have a chipped firing pin.

A thorough cleaning may correct the light strike. Rimfire rifles are rarely detail stripped and cleaned. It could have original grease in it!

Good luck and if you follow Casters advice remember your rubber gloves an goggles...

[LawEnforcementSalesTN]

If you can't get it going on your own I'd be happy to take a look at it for ya.  Just keep us posted.

 

Good luck!

[xtriggerman]

Yes, the first place to start is just a good cleaning and be sure the firing pin is moving freely and the rear of the firing pin is not pinched by bolt body pean over since the hammer can beat the bolt up a bit where it hits the back of the firing pin. Also a major defect in the 57 is the fact the receiver is aluminum. If the gun has had a lot of rounds fired, its not uncommon for the bolt to have excessive head space. Some of the 57's have been known to crack the receiver completely in half directly to the left and right of the recoil shoulder of the receiver. Its too bad they did not make the 57 out of steel as the 57M (22 mag). I have had several 57M's and hold them in high regard especially after my 57M out shot my brothers new Henry 22mag lever. Not by much, but enough to brag about...LOL!