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Discussion Starter · #1 ·
I'm having trouble with an otherwise flawless M44 I bought from AIM. It refuses to chamber a round. It seems that the bullet loads in front of the extractor claw so that I cannot close the bolt. It appears to stay to the right as I push the bolt forward and the rim never rolls under the claw and in-line with the bolt face.

I have tried 5 different bolts with no success. I have switched the magazine with two other M44's with no success. I have also placed the receiver and mag in a different stock to see if that is somehow the problem with no success.

Anyone have any ideas what could be causing this? I have exhausted my limited gunsmithing knowledge. Any ideas would be greatly appreciated.

AIM refused to take it back so if I can't fix it I'm stuck with a $69 meat skewer taking up valuable space in my safe.

Thanks in advance,

Babba
 

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Discussion Starter · #3 · (Edited)
Yes. I have used 5 different complete Mosin bolts and none have worked. Same problem with each.

I will note the claw on each bolt was different with regard to how it was situated on the head. I've heard that sometimes they can be too "tight" and bent forward and keep the bullet from rolling into place properly so I was trying to eliminate this as the culprit and any other bolt-related issues.

The bolt will close fine if you insert the shell manually under the claw and then chamber it.
 

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Discussion Starter · #5 ·
I tried the bolt in another M44 and it functioned flawlessly. The chamber and relief are clean as a whistle. I spent a long time digging in there with a bore light, a Q-tip, cleaning picks and some solvent when I first discovered the problem. I also didn't note anything that looked like a burr in the chamber. I'll take another look.

Thanks for the advice on the dummy round. I'm careful but I didn't think about that. I'll put one together tonight on my press.
 

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Discussion Starter · #7 ·
No, there isn't a stuck case. I can also fully load a cartridge so long at the rim is inserted under the claw prior to chambering.

I've been trying to do a side-by-side comparison vs another M44 chamber to see any variances between the two that might be the source. Not so easy to do without medical probing devices.
 

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Discussion Starter · #11 ·
I'll try to drop a round in and let you know. I haven't checked the headspace yet. I will have to order a gauge to do that. I assumed, perhaps wrongly, that this wasn't the issue since it does chamber when the round is placed under the claw. Anyone have a source for "Go" gauges?
 
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