Author Topic: How hard to tune extractor on 1911 style pistol  (Read 766 times)

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Offline Ct Kid

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How hard to tune extractor on 1911 style pistol
« on: January 23, 2006, 02:32:18 PM »
Have a colt 1911 pistol. Went to the range everything shot great no failures of any kind. Went to clean it and noticed brass marks right behind the ejection port.Did some reading and it seems that the extractor needs to be fine tuned. Two questions::: will the marks come out of the slide and second question how hard is it to fine tune the extractor.What do you do to the extractor and can I do it. Thanks

Offline gunnut69

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How hard to tune extractor on 1911 style pi
« Reply #1 on: January 23, 2006, 07:38:04 PM »
The brass marks shouldn' be too hard to remove. A bit or steel furr and WD40 will likley fo the trick. The extractor needs a slight bevel on the bottom to allow easier passage for the round as it slides up the breech face. It also needs enough bend to create the tension needed to hold the extracted case long enough for the ejector to hit it. This is adjusted by bending the extractor body as it is a self spring. It's best to use a bending jig and a test loop to adjust these. they are available from brownells but unless you plan on doing several a trip to a smith might be the easiest. If the gun functions OK and you experienced no jams I think that I'd avoid fixing ehat ain't broke..
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Offline unclenick

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How hard to tune extractor on 1911 style pi
« Reply #2 on: January 31, 2006, 01:15:02 PM »
Brass marks don't necessarily mean the extractor has a problem.  In any case, you can remove them without risk to the finish by applying any copper removing bore cleaner with a swab until they disappear.

If you look at a picture of a Goldcup or other match tuned gun, you will see a recess cut into the steel just behind the ejector port.  This is usually called a rollover notch.  It is a common modification done to address just the problem you are seeing, which is a spinning case flipping around into the path of the returning slide.   I don’t know whether you already have one or not?

That spinning of the case is also affected by the strength of your recoil spring (a stiffer one will slow it down and throw cases more to the side).  IF you have a full-size 1911, it will have a 16 lb spring standard, and going to an 18 lb. spring would be a good move.  Wolfe is a standard, but I like the Sprinco springs better. It is also affected by the length and the shape of the nose of the ejector.  The long Commander-style ejectors find favor for getting a case out sooner in the cycle than the standard ejector, but that earlier interception of the case imparts more speed and spin to its ejection.  Some guns prefer something in between.  I don’t know which ejector you have?

The other thing you will see in some guns is dented case mouths from the case mouths striking the lower edge of the ejection port on the inside.  To get them the throw the case out at a slight upward angle, the modification to the Commander-style ejector nose below is common, and it may help move your cases out just differently enough to help, if you have this style ejector.

Adding a Wilson SHOCK-BUFF or other recoil pad to the ejector spring guide can also affect ejection angle by stopping the whole slide a little sooner.  These are inexpensive to try.

So, spring, SHOCK-BUFF, ejector carving, and of course you can get an ejector tension testing tool from Brownells if you still think that is the problem.

Nick