Mangled case mouth

[Tune_up]

I am not sure if this is the right place to post this but thought I would try it here first.
I recently purchased a Dan Wesson 1911 in 10mm. After about 100 rounds I have not had any feeding problems but have had 7 cases that look like these, (lost 8 so may have had more). It occurs with different mags and I don't think it has any relationship to where the cartridge is in the mag, ie not the first or last. I'll be the first to admit my ignorance but it seems to me that maybe the extractor is holding the case to long and it gets caught between the ejector and the slide. What do you all think and what's the fix?

I intended to post this in gunsmithing but can't figure out how to move it, sorry.

 

[Otto]

Looks like an extractor problem. You can check it yourself using these instructions.
http://www.m1911.org/technic2.htm
Personally, I'd just replace it with a Wilson extractor.
Limp wristing your grip will do it too especially when rapid firing.

I assume you bought the gun used since DW quit making 10mm, either way I'm sure Dan Wesson will take care of you if you'd like to send it in.

 

[steve4102]

My DW 10mm did that, but not as bad. Mine was an ejector problem, to long.

 

[243winxb]

A light load may not let the ejector do its job correctly. If the bent case get trapped in the action after firing and then is hit by the slide, this would be my guess. How far the gun is throwing the brass might be another clue. Short= weak load.

 

[rcmodel]

I agree the gun is trying to put the empty case back in the chamber and the case mouth is getting mangled by the barrel hood.

Check the extractor for proper tension.
Check the ejector for tightness in the frame.

It could also be a sign of low power loads with not enough poop to fully cycle the slide and eject the case.

rc

 

[243winxb]

It occurs with different mags

Another cause can be the following round is riding to high in the magazines. The fired case on blow back is knocked from the bolt face prematurely. An adjustment of the magazines might be needed. Number all your magazines to be sure.

 

[Tune_up]

Wanted to thank everyone for your response. As far as I can tell the extractor is adjusted correctly. First thought was to replace it, but I think I will have a smith look at it, probably save money in the long run. Thanks again.

 

[~z]

If not the extractor:
I assume these are handloads (because this is the reloading section), are they light loads? If so, another option is that the recoil spring is too stout for that load, although as previously noted, limp wristing your grip will do it too.
~z