1911A1 Extractor Tuning Issue?

[Mikee Loxxer]

I am under the impression that my Springfield Armory 1911A1 GI model has an extractor that needs tuned. Occasionally a fired case will not eject as it will stay under the control of the extractor (see picture below). Additionally the cases have a dent in their mouths and a scratched or marred mark on their sides. This dent and marr appears to from the case rubbing against the slide as the extractor is not letting it go upon attempted ejection. I have also included pictures of the case mouths and the accompanying marring. What do you folks think I should do? Send it back to Springfield Armory to have them tune the extractor or try and change its curvature myself?

 

[smalls]

Wouldn't that be an ejector issue? It's being extracted from the chamber, it's just not being ejected out of the gun.

Unless the extractor is really, really tight, not allowing it to let go of the rim. But if that was the case, I doubt it'd be able to get under it in the first place.

 

[Drail]

Send it back to Springfield unless you have a reputable experienced 1911 smith where you live. It may be a combination of factors besides the extractor itself.

 

[9mmepiphany]

It does sound like an ejector problem, extractor looks like it's working fine.

The dents on the mouth of the fired cases are normal, as the GI model doesn't have a lower ejection port. The case is hitting the side of the ejection port as it is being kicked out

 

[rem1858]

What ammo are you shooting ?

Maybe too strong of a recoil spring...

Is the slide some what sluggish to return to battery when firing.

Just some thoughts.

Clarence

 

[1911Tuner]

Form the looks of it, you may have an issue with the depth of the claw from the tip to the tensioning wall, causing the case rim to get trapped as it tries to roll off the extractor.

Use a dial caliper to measure the thickness at the wall, and then again at the tip. Subtract. If the difference is greater than .036-.037 inch...that's likely what's happening.

An extended ejector aggravates the problem.

If yours is too long, carefully shorten it by dragging the tip sideways along a fine cut mill file, being careful to keep it flat on the file. .035 inch is about right. Then radius the top and bottom corners a little so that looking at the extractor from the front, it has a shape similar to a D. Don't get carried away.

 

[Mikee Loxxer]

rem 1858, the ammo was a Magtech 230gr FMJ load. Using other loads (Winchester White Box 230gr FMJ, 230gr over grains of Unique, etc.) yield the same result.

1911Tuner, thanks for the information. I'll do some checking once I get a chance.