Plainfield carbine firing problems

[garander]

Hi everyone ;
I just recently inherited a Plainfield carbine, seems to be in really good shape in and out ,
However my first range session was some what startling, after loading and successfully shooting 3 rounds, the 2'nd 3 rd string doubled fired and jammed the 3'rd round.
I'm not really sure what to look for in terms of correcting this problem.
It was my intention to sell this gun but now I'm not sure i want the liability.
Any advise would be appreciated
Garander

Information

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[browningautorifle]

Are they reloads? Have you examined the firing pin to see if it's broken and protruding? We don't have much to go on here.

[garander]

firing pin is fine and free

[Chuckindenver]

commecial M1 carbines are known for double firing, and some,,empty a magazine...
the firing pin has a dog leg at the back end, the action has a cut that is supposed to mate with that dog leg, it keeps the firing pin from moving forward and slam firing,
they wearm and some are out of spec, check to see if your action has the little cut, and if it mates with the pin.

[A. F Medic]

One of mine is a Plainfield and it spits them out all day long. I just have to remember to make sure the bolt is locked up before attempting the first shot!

What the previous poster said makes a lot of sense.

[browningautorifle]

Are you shooting reloads?

[garander]

Not shooting reloads, factory, old hornady's softpoints , I'm not sure about the sear, hammer and spring in terms of wear or correctness for this gun, I'm trying to find exploded views of the internals .
Thanks for the advise

[browningautorifle]

Plainfield Machine Co. Try typing this into Google and it should put you into the page for them. There's bags of info about these guns and it's not the same as military guns.

[Harlan (Deceased)]

This is a site that shows how the bolt comes apart. If you need to take it apart a bolt tool makes it much, much easier, but you probably won't want to buy one if you're going to sell the carbine -

http://www.alpharubicon.com/leo/sergercarbinebolt.htm

Here's a web page with some info on Plainfields -

Plainfield Machine Co.

Here's a link to the home page. Scroll to the bottom of the page and you can contact the site webmaster directly to see if he knows anything specific. His name is Jim Mock and he's a great guy. He's also a member here and he knows more about commercial carbines than anyone I know of.

M1CarbinesInc.com

Also, you might want to ask the carbine forum if you haven't already, as there's a wealth of knowledge there too.

M1/M2 Carbine