M1 carbine ejection problems

[M1shooter]

I occasionally have an ejection problem with my M1 carbine (For the record, it's an Inland receiver and a Saginaw barrel). What happens is the old casing is removed from the chamber, but does not get ejected. Instead, as the bolt moves forward from its rear-most position, the old casing gets caught between the bolt and the front of the receiver above the chamber. Of course, the bolt has picked up the next cartridge in the magazine, so the old casing gets pretty messed up.

I don't think it's a magazine problem. It has happened with both of my 30rd. and one of my 15rd (I have 2 15rd.). But I don't see how the magazine could affect ejection.

The ejector plunger functions smoothly, and the ejector spring feels pretty strong.

My guess is a worn extractor. I think what is happening is that the pressure from the rearward moving bolt--in addition to the pressure placed on the rear of the casing by the ejector, is causing the extractor to slip out of the groove of the casing before the casing clears the chamber, therefore the ejector plunger is out of contact by the time the casing is clear, without the fulcrum of the extractor to throw the spent casing out of the way.

I think that by replacing the extractor and extractor spring will fix the problem.

This is a hypothesis, and wanted to see if anybody else has had this problem and agrees/disagrees with my diagnosis. Thanks.

Patrick

[Triangle 66]

It sounds to me like the ejector/spring may be at fault.

If the bolt is going back far enough to pick up the fresh round from the magazine then the bolt should be back far enough to throw the empty out.

It could also be the extractor as you suggested.

How often does it happen......1@100rds........1@1000rds ?

Could be an occassional weakly loaded cartridge.

A lotta help aren't I ?

I would start with a thorough cleaning,particularly the gas tappet/extractor/ejector.

After that,shoot it,and if the problem persists,replace the extractor/ejector/springs(they should be pretty cheap).

Then try some different ammo.

Hopefully one of these should clear up your problem.

[Skip]

Have you tried firing a round without the magazine in?