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Thread: Help!!!!!!

  1. #11
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    If it were short stroking I doubt it would pick up the second round right?

  2. #12
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    It's only partially extracting.

  3. #13
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    I bet that if you thoroughly clean and lube your ejector and lose the "o"ring your problem will go away.
    That is, unless there is a low-percentage problem with your rifle, which is difficult to determine unless the easy, cheap solutions are tried first.
    Jack Leuba
    Director, Military and Government Sales
    Knight's Armament Company
    jleuba@knightarmco.com

  4. #14
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    Quote Originally Posted by MAUSER88 View Post
    It's only partially extracting.
    There is no such thing as partial extraction.
    Failed extraction happens when the case is in the chamber, at the point of greatest force. The extractor does not fail once the vase has been pulled from the chamber, there are no events or forces on the fired case that would cause the extractor to lose grip on the rim.

    As Jay said, you have ejection problems- linked to the ejector, excessive extractor tension, and possibly bolt speed.
    Jack Leuba
    Director, Military and Government Sales
    Knight's Armament Company
    jleuba@knightarmco.com

  5. #15
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    Quote Originally Posted by Failure2Stop View Post
    There is no such thing as partial extraction.
    Failed extraction happens when the case is in the chamber, at the point of greatest force. The extractor does not fail once the vase has been pulled from the chamber, there are no events or forces on the fired case that would cause the extractor to lose grip on the rim.

    As Jay said, you have ejection problems- linked to the ejector, excessive extractor tension, and possibly bolt speed.
    OK, Thanks for the help. I'll switch bolts and see if that cures the problem and work from there.

    Many thanks Guys!!!

  6. #16
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    Quote Originally Posted by MAUSER88 View Post
    If it were short stroking I doubt it would pick up the second round right?

    I guess it depends on how 'short' it's 'short-stroking' or if that's even possible.

    I had a rifle with a leaky gas block and it would cause intermittent short stroking. I would get full extraction and ejection, but it would not pick up another round. Maybe if it cycled back just a little further it would have picked up a round, but at that point I imagine I wouldn't have noticed a problem.

    I'd be curious to see what happens if you start running another bolt as the OP stated. If that seems to resolve it then i'm with Jay, it seems like an ejector issue.

  7. #17
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    one round is live and one round is spent forming a v.

    my observation:

    I woudn't think it's short stroking. considering that the bolt was able to strip a live round from the magazine.

    What was the hammer position? was it hammer up? if a live round was stripped from the magazine and the hammer was up... this is definitely not short stroking.

    I think it's more of an ejection problem. check ejector. it might have a weak spring.
    www.cpra.ph
    Cebu Pistol and Rifle Association

  8. #18
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    Quote Originally Posted by lanceriley View Post
    one round is live and one round is spent forming a v.

    my observation:

    I woudn't think it's short stroking. considering that the bolt was able to strip a live round from the magazine.

    What was the hammer position? was it hammer up? if a live round was stripped from the magazine and the hammer was up... this is definitely not short stroking.

    I think it's more of an ejection problem. check ejector. it might have a weak spring.
    Correct. The general consensus seems to be the ejector as the problem.

    Thanks for your input.

  9. #19
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    Guys, I used the following terminology:

    There is an outside chance that your carbine is short-stroking in a particular way.
    Note I said that this was a possibility but not the probable cause - no need to get hung up on it.

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