1911 FTE Problem

Will try to help with info, not reloads, all new, original problem was only with federal. Shot today and with staggering mags of federal and S and B. Changed mags alternately with round make, ie. A mag with S and B, next time B mag with S and B, all six jams of 100 rounds were Federal. All mags were full. Last 50 rounds of the day were S and B one jammed. Please see enclosed pics.
ACBBBF1F-C045-4784-8291-E59B4A777FE6_zpsetv02h8s.jpg
[/URL][/IMG]
06C06C74-4FF6-4517-B236-473277A9C7C1_zpsyzgi7fzl.jpg
[/URL][/IMG]
 
Do those help? Could a tight mag spring push round up to interfere with extractor? Before it mova spent round far enough.... Just guessing. Extractor is clean with no damage to inside edges, seems to grip, put spent round under extractor with slide out and rapped slide, round stays held in place. Can see marks on spent brass, where the extractor grips the brass, looks the same as marks or rounds that did extract.
 
Extractor claw is ####ed or insufficient extractor tension most likely, possibly out of spec chamber but failing to extract 9mm is pretty smashed.

Sig has had ongoing issues with their external extractor; they originally screwed up the geometry of the claw and the placement of the extractor on the slide. They later fixed the claw geometry problems, but whether they relocated the extractor I couldn't say (although I doubt it).

The extractor placement on the earlier SIG 1911s caused issues because it wasn't interfacing with the rim very well, so minor extractor hook chipping would kill the extractor (this is assuming you got one with a hook instead of the nub they put on the originals).

Assuming they haven't changed the position of the extractor on the slide, I'd check the hook geometry. Well, either way I'd check the hook geometry, because they have a history of ####ing it up.

The other possibility that I'd look at would be broken or defective springs tensioning the extractor.
 
Hmm. More posts.

The mag spring should not affect the extraction. It's pushing the top bullet into the bottom of the slide.

Could conceivably be the out-of-spec barrel problem. Failing to extract 9mm is really suspicious. I'd hand-cycle rounds and feel for the claw popping off the rim.


EDIT: or the extractor claw looks machined well but the geometry is ####ed, like Sig used to do.
 
Can you easily remove the spend cases that don't get extracted? Sounds like the extractor is just barely gripping the rim of the case. I'm gonna go with the group that says defective extractor. It's still under warranty, contact your dealer and have them look into it before doing any work on it yourself and voiding your warranty.
 
Still looking at some extractor tuning IMO.
The pivoting external version works a little differently than the internal but it does the same thing.
The claw needs to grab enough meat on the case rim, and the tension (provided by the springs) needs to be sufficient to hold the round so the claw doesn't slip off.
Anyone who's ever played with a CZ style extractor - it's the same.
 
An update, shot today, still had nine FTE, in 75 rounds.
Tried an exercise I use on my p226, insert full mag, rack once, drop slide, fire, after slide runs dryfire and watch for flinch. When tried it with the 1911, the slide would not drop, had to pull it out with force, round on top would be pointing straight up, or just fall out of mag well. Beginning to suspect it is in fact mag problems, have no other ones to try as of yet. Spring pressure seems to be to great...... But alas, no real consensus, and since I am not a gun smith... Will have to continue trying with other mags before returning to Sig, a step I really don't want to do. Anyone who can try above drill and let me know if your gun runs flawlessly? Obviously can be run with out real ammo, ie. Be safe .... Use snap caps.
Let me know what you think
 
So the slide was locked open, you inserted a full mag and did you used the slide lock or slingshot method to release the slide? What did you have to pull out with force? The magazine with the slide closed? Or the slide release with an empty mag?

Try this, insert an empty mag with the slide closed, can you easily pull back the slide or do you need to use a bit of force to do so?

It still doesn't answer why the brass isn't under the extractor in any of your pics with the FTE. Maybe you have more than one issue but I'm getting all sorts of confused with your descriptions of what's happening.
 
Sorry I miss spoke, actually meant to say the mag would not drop out. I am thinking that after a round is chambered, the following round is pushing up with enough force to dislodge the spent casing from the extractor, so extractor of course goes back with slide but brass stays in the chamber, logic to me being if, in my drill the the following round is jamming up, from force of spring that I cannot drop mag without effort and dislodging the round from the magazine, then that force may be responsible for the initial problem and not indicative of an extractor problem at all. Sorry in my mind the logic process makes sense, but alas maybe not in translation here.
 
To answer, yes an empty mag drops free, and a Barney miller works as it should, ie. One round in mag, rack and drop mag. And of course brass can't be under extractor with slide back, or I would have completed the extraction process, and had no problem, thus I am thinking my following round is always knocking the spent brass off of the extractor as it goes back past the nose of the following round.
 
So with the slide closed, insert an empty mag and then try and pull the slide back. Can you do this with normal force or do you need to really pull back on the slide?
 
No problem slide runs fine when empty mag is inserted.

And thanks Wayne, the logic seemed sound, but began to question.

Not ready to send it back just yet misanthropist , have a call into md charlton, still hoping just mag problem.
 
You must log in or register to reply here.
Back
Top Bottom