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Thread: "trough" for improved feeding???

  1. #1
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    "trough" for improved feeding???

    Just finished reading an article in the June American Rifleman on the Wiley Clapp Colt/TALO Commander. There is a pic that shows what appears to be a fully throated chamber mouth that "features a shallow trough in the throat to enhance feeding." It looks like a crossbreeding between a throated barrel and an older GI barrel:) I am unfamiliar with this concept. Can someone bring me up to speed on this mod? Part of me says Colt wouldn't do it if it was snake oil. OTOH - I can't say that I've seen it in any other high end 1911s (not that I look at a lot:)

    TIA

    john
    jmoore (aka - geezer john)

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    It sounds like what I've hear called the Colt "dimple throat." Can you link to a pic?
    "Think you used enough dynamite there Butch?"

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    Quote Originally Posted by Hersh View Post
    It sounds like what I've hear called the Colt "dimple throat." Can you link to a pic?
    Haven't found an online pic yet - just the shot I mentioned in AR. Will keep looking.

    john
    jmoore (aka - geezer john)

    "The state that separates its scholars from its warriors will have its thinking done by cowards, and its fighting done by fools." Thucydides

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    Quote Originally Posted by Hersh View Post
    It sounds like what I've hear called the Colt "dimple throat." ....
    It is. Rather than cut a deep ramp or throat all the way across the bottom of the chamber, Colt cuts a shallow ramp across the bottom and then a deep ramp in the center which looks like a dimple.

    Colt's been making their barrels that way for a while. It seems to work ok but I still re-cut them.

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    Go to: COLT Dimple Throat Barrel

    I have several Colt 1911s with this barrel and have never had any trouble feeding various rounds including 230 Ball, Golden Saber, Corbon HP and lead truncated cone.

    Bill Tidler Jr.
    **************

    ...We have long maintained that the only accessories that a 1911 needs are a trigger you can manage, sights that you can see, and a dehorning job. That still goes.
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    Your link goes to a error code.

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    Quote Originally Posted by Infidel74 View Post
    Your link goes to a error code.
    It works for me.
    Try this: Entire Document

    Bill Tidler Jr.
    **************

    ...We have long maintained that the only accessories that a 1911 needs are a trigger you can manage, sights that you can see, and a dehorning job. That still goes.
    ~Jeff Cooper

  8. #8
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    Old school GI barrel - Gunsmith cut throat - Colt barrel dimpled throat on the right.


    I have a couple of the new Colt barrels and the "dimpled" barrels works well with no problems feeding any of the ammunition I can find.

    Quote Originally Posted by Dave Berryhill View Post
    Colt's been making their barrels that way for a while. It seems to work ok but I still re-cut them.
    I thought that was interesting. I always thought it was surprising that many gunsmiths will re-contour the ramp back to the wide type when they get a new Colt for custom work. Why would it be necessary to perform this work if the "dimpled" barrel seems to work OK?

    Cameron
    Last edited by Cameron; 05-27-11 at 11:45.
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  9. #9
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    Quote Originally Posted by Cameron View Post
    ...Why would it be necessary to perform this work if the "dimpled" barrel seems to work OK?
    I don't know if it's necessary but I do it anyway. It widens the throat or ramp of the barrel more than the way that Colt cuts it but I don't cut it any deeper than I do on a non-dimpled barrel.

    There is no down side and I sleep better at night knowing that I've done everything that I can to make the pistol reliable

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