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Thread: Sudden failure to feed

  1. #11
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    Scratch that theory then.

  2. #12
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    A failing action spring can bring this problem on suddenly. Replace it.
    The number of folks on my Full Of Shit list grows everyday

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  3. #13
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    Weak or damaged action spring. A carbine action spring should measure a minimum of 10 1/16" for a quick check.
    Gettin' down innagrass.
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  4. #14
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    How many rounds do you have through it?
    Sic semper tyrannis.

  5. #15
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    Quote Originally Posted by Wake27 View Post
    How many rounds do you have through it?
    I'm guessing around 4000.

  6. #16
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    That info is helpful and points to a possible worn action spring.

    Let us know how the replacement works.

    Quote Originally Posted by CHX77 View Post
    I'm guessing around 4000.
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  7. #17
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    It looks dry to me. Maybe just the picture though. It wouldn't hurt to give it a drink and see what happens. I am old and continue to use BreakFree CLP.

  8. #18
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    The new spring is installed and it's chambering rounds 100% now while cycling by hand. I'll try to get out and fire it in the next couple days.

    The increased tension of the new spring was evident on the first pull of the charging handle. It seems I've used this firearm enough to warrant stocking up on critical spares.

    Thank you to all who assisted troubleshooting.

  9. #19
    Join Date
    Apr 2016
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    Quote Originally Posted by CHX77 View Post
    The new spring is installed and it's chambering rounds 100% now while cycling by hand. I'll try to get out and fire it in the next couple days.

    The increased tension of the new spring was evident on the first pull of the charging handle. It seems I've used this firearm enough to warrant stocking up on critical spares.

    Thank you to all who assisted troubleshooting.
    Possibly another reason to use Spinco Blue or white springs. I'm surprised that a regular milspec spring gave up at 4k rounds. I typically heard 5-7k rounds and as much as 8-10k live. But this is a great data point.

    Thanks @CHX77

  10. #20
    Join Date
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    Quote Originally Posted by CHX77 View Post
    There are two parallel very light scratches on the bullet that appear to be from the edges of the ramps. My logic (possibly flawed) says that there shouldn't suddenly be new sharp edges on a well broken-in firearm. I do appreciate any ideas though. Thank you for that. I'll see what a new spring does and go from there.
    That's completely normal. You probably just haven't noticed it before. If you're bound and determined to polish the feedramps, there's a very specific way to do it. I wouldn't mess with it, though, seeing as how it's not the underlying problem.
    Last edited by okie; 11-02-19 at 18:51.

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