M1 carbine jamming every round..

[Reconinforce]

What do the experts think? USGI mag, rifle (inland). Brass cased ammo that runs great in my other carbine.

Ejects strongly, tries to load a round but the bolt chews into the case of the next round and stops the bolt progress. Only brought one mag so I’ll need to try others to confirm it’s not that. This is a new to me M1 bit the mag ran fine in my other carbine.

pic is of a new unfired round partially loaded and bolt stuck in its forward progress due to ripping into the case of the next round in the mag..

 

[Trooper894]

My first guess would be the magazine feed lips being worn or spread too far apart. The next thing I would do is install a new spring kit. Unless I know the history of the surplus firearm, my first step is ordering and installing a new spring kit to help eliminate a lot of problems.

 

[Reconinforce]

My first guess would be the magazine feed lips being worn or spread too far apart. The next thing I would do is install a new spring kit. Unless I know the history of the surplus firearm, my first step is ordering and installing a new spring kit to help eliminate a lot of problems.

Good info. Thanks. Was thinking the feed lips could be allowing the round to nose up too much. Thanks again.

 

[Story]

I'd read somewhere along the way that the M1 carbine mags were meant to be quasi-disposable.

 

[plinker]

Wolff mag springs are an improvement as well as their rifle kit. I've heard the mags are semi disposable as well.

 

[Invictus77]

I've had bad mags that would not feed in an M1 and others run like a top in the same stick. My next door neighbor had an M2. While I'll admit making full auto function correctly is a bit more challenging than a semi auto, I will say I went through a lot of effort finding 8 or 10 thirty round mags that were 100% reliable.

 

[garandguy10]

Put some good quality, new springs in that carbine.

 

[ArtBanks]

Not unusual to have to re-shape the feed lips on carbine mags. Replacing springs and follower can also help for sure.

 

[kar66]

It could also be your mag catch. Some don't hold the mag up the way it needs to be held.

 

[KoKodog]

if the round will not chamber enough to close the bolt clean and polish the chamber

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[gunplumber]

what am I seeing on the outside of the extractor? Is that just grease? Looks like welding slag.