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Thread: Can this type of jam be cleared in the field?

  1. #1
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    Can this type of jam be cleared in the field?

    If a round was to be stuck in the chamber, the extractor was to rip off the rim of the case, and there was a double feed, how would you clear this?

    I don't think the upper could be pivoted up because the bolt carrier would be in the buffer tube. I'm not sure that pushing both upper retaining pins would enable the upper and lower to be separated either. I don't want to risk damaging my 6920 by testing this.

    Is there any experience here?

  2. #2
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    Mortar it on the stock............if you're saying there is a case stuck in the chamber with the base ripped off and a fresh round stuck in the broken case? I had that happen once...locked the gun up. Had to mortar it to get it free. Luckily when it came out the fresh round pulled out the broken case with it.
    Last edited by wahoo95; 03-12-11 at 22:10.

  3. #3
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    It's called a malfunction, jam goes onto toast or a sandwich with peanut butter.

    I would lock the bolt to the rear, remove the magazine and then put my USGI cleaning rod in the barrel and tap it out.

    Quote Originally Posted by Buckshot Barry View Post
    If a round was to be stuck in the chamber, the extractor was to rip off the rim of the case, and there was a double feed, how would you clear this?

    I don't think the upper could be pivoted up because the bolt carrier would be in the buffer tube. I'm not sure that pushing both upper retaining pins would enable the upper and lower to be separated either. I don't want to risk damaging my 6920 by testing this.

    Is there any experience here?



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  4. #4
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    I'd probably lock the bolt to the rear, strip the mag then either rack it a few time or reach in the magwell to try to loosen what's there. If none of that worked and mortaring didn't either, which in this instance it may not since the extrator is no longer contacting the rim, I'd shove a rod down the barrel and smack it a couple times (that's saying my case or range bag is near by).

    EDIT - every time, I swear.
    Last edited by jonconsiglio; 03-12-11 at 22:03.

  5. #5
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    is the rim just torn out at the extractor, or is the entire head torn off?

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    Well once you remove the mag and clear the double feed (although the stuck round would still be in the chamber), the BCG should still close fully, allowing you to remove the upper receiver if needed. But the only way to remove the round would still be to shove the round out with a rod from the muzzle end.

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    Lock it back, drop mag, clear any troublesome rounds, tap out round with cleaning rod.

    It's called a malfunction, jam goes onto toast or a sandwich with peanut butter.
    There is more than one word to describe such an occurrence on this platform.
    "I have your number. Consider yourself warned."

  8. #8
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    Quote Originally Posted by opmike View Post
    There is more than one word to describe such an occurrence on this platform.
    and you can call a "magazine" a "clip," or a "cartridge" a "bullet," but you're still gonna hear about it.

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    If I understand it correctly, youve basically got a double feed malf. with a rimless case lodged in the breech? If this were the case, you would clear it by placing the weapon on safe, removing the magazine, locking the bolt to the rear, removing the double feed, and then dislodging the stuck case. This isnt something that can easily be done in a firefight I assume because it would require using a shell extractor or tapping the case out with a rod or dowel. Of course, it's been a long day so take it easy on me if I'm wrong.

    Or I could give you the cookie cutter response, "Should of bought a brand XXXXX!"

  10. #10
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    Quote Originally Posted by wahoo95 View Post
    Mortar it on the stock............if you're saying there is a case stuck in the chamber with the base ripped off and a fresh round stuck in the broken case? I had that happen once...locked the gun up. Had to mortar it to get it free. Luckily when it came out the fresh round pulled out the broken case with it.
    If you are going to "mortar" the rifle make sure your stock is collapsed all the way, if not you will shear the locking pin off. Hit the stock square on the ground, they can break (watched it happen on a Colt in the U.S.M.C) I believe the malfunction is called a ruptured cartridge and i think there is a tool for this. We had them for machinguns

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