Troubleshoot an old Colt.

John Travis

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Up early this AM, and my thoughts turned to problem chillun that have found their way onto my bench. A particularly interesting case came to mind in the form of a post-war Commercial Colt that had first belonged to his grandpappy...then to his pappy...and finally fell to him. Serial number resolved to mid-1948.



The old gun had seen many rounds, but the finish was in surprisingly good shape, so it apparently hadn't been carried much if at all. It was a range queen, meticulously maintained due to being an heirloom, but used for what it was meant for on a regular basis.

During the last outing, the pistol had functioned perfectly as it always had...and then the trouble started.

Ejection became very erratic with cases falling all over the place. Some even flew over the shooter's left shoulder, and with every magazine...six rounds fed, fired, extracted and ejected, until the last one. The fired case would be left sitting on top of the magazine follower in the port, slide locked back.

Every magazine.

They guy called me and arranged for a sit down. "An odd problem" was all he said on the phone. He arrived and the minute he described the glitch to me, I knew what it was because I'd seen it before. I jacked the slide back and peeked in to confirm it.

This time, I thought I'd give all y'all a shot at the diagnosis. It's very simple, as most of these things are. The fix took all of 10 minutes, including teardown and reassembly, while explaining how the bloody hell such a thing could happen.

What was it?
 
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From your clues I'm gonna guess broken ejector. The magazine spring was providing the force to eject all the empties except the last one.
 
Not a mag problem because it happened with all of them...

I am guessing that "warm" was for it being a combination of small changes.

Gotta go get wifey at doctors office!

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I hate it when I remember hearing the exact trouble described before, but can’t remember the solution.

Did anyone say broken extractor upstream?
 
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It's almost a gimme now, right? Cases are extracting so there is a hook, but they're not ejecting properly so it's not holding on to the case very well. Happened suddenly so it's not gradual wear or fatigue. There's a chip missing from the extractor hook.
 
Poor hook profile worked until... what happened? Ejector tip broke off? Debris between ejector and slide?

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Ok, ejector was fine, extractor not clocked but not profiled to spec... sudden change... brass all over the place but last round doesn't eject... all mags affected... simple fix... strange problem...

Something to do with the slide stop, maybe?

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Slide locked back but last empty not ejected... all mags. Slide stop lug that is pushed up by follower was dragging on brass?

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Cases are extracting so there is a hook,

No, there wasn't. The hook had sheared completely off at the corner, leaving just the tensioning wall to hold the case until the upcoming round in the magazine kicked it clear of the port...or into the path of the slide...which attributed to the all-over-the damn-place ejection pattern.

With a really smooth chamber, there is enough residual "blowback" gas in the barrel to drive the case out of the chamber. If the extractor breaks and leaves the tensioning wall intact, it will maintain tension on the side of the case until something hits the case...either the ejector or the next round in the magazine. In this one, it was the round in the magazine. Otherwise, it wouldn't have always failed to eject the last round. I've seen that happen, too...where the affected pistol made it through five magazines after the erratic ejection started before finally failing on one.

I've also heard of old Browning High Powers with the internal extractors doing this same trick.

Told ya it was a strange one.
 
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Johnny, how does a 1911 behave with no extractor?

Without an extractor at all, it doesn't extract very well. Some will make it out of the chamber and some won't. Most won't.
Withoug a claw with the tensioning wall left intact, most will if the chamber is smooth and the ammunition isn't over pressure.

Feeding isn't a problem unless the gun is poinrted straight up, held sideways, or upside down.
 
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