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Thread: 16" Midlength BCM won't feed steel casing. Normal or not?

  1. #11
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    Quote Originally Posted by n517rv View Post
    Does the ammo have a laquer coating on it? Try rubbing two rounds together to see is they slide or if they stick/grab. Also, are you running GI mags or Polymer?

    If the rounds stick try running a polymer mag to see if that helps. I ran into this with some Cabela's Herters 223 and will never buy that shit again. It fed better from a pmag and wouldn't feed even 2 or 3 rounds with a GI mag. Buy better i mean it would fed 5 to 6 rounds before jamming.
    Herters is polymer coated.
    Rebranded Tula.

    Rubbing 2 rounds together?
    This sounds like TOS type silliness.
    Quote Originally Posted by scottryan View Post
    Anybody that owns or sells pistol versions of assault rifles is a bottom feeder, irregardless of the ban status of certain ammunition.

    They are illigetimate weapons that have no real purpose other than to attract retards to the gun community.

  2. #12
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    Quote Originally Posted by n517rv View Post
    Does the ammo have a laquer coating on it? Try rubbing two rounds together to see is they slide or if they stick/grab. Also, are you running GI mags or Polymer?

    If the rounds stick try running a polymer mag to see if that helps. I ran into this with some Cabela's Herters 223 and will never buy that shit again. It fed better from a pmag and wouldn't feed even 2 or 3 rounds with a GI mag. Buy better i mean it would fed 5 to 6 rounds before jamming.

    If you want to save money and shoot a ton of ammo get a used Dillon 550b, some once-fired and processed LC 5.56 brass, some pulled bullets, powder, and primers and go to town... You wont have any feeding issues with a quality gun/build.








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    He said it was brass coated. With my one AR15 that didn't run steel ammo, magazines made no difference, but I suppose it's possible that magazine could also a factor. To the OP, what magazines are you using?
    Last edited by Esh325; 02-19-12 at 16:24.

  3. #13
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    I'm running strictly Pmags, currently. Again, they are steel cased rounds with supposed brass coating.


    Purchased here:

    http://www.sportsmansguide.com/net/c....aspx?a=743102




    edit: I'm actually a bit surprised that these do typically run in a 16" Mid-length as they feel like they are very heavily coated/lacquered. Almost to the point of looking and feeling like a fake round.
    Last edited by djmorris; 02-19-12 at 16:37.

  4. #14
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    For what it is worth, my BCM upper needed about 150 rounds before it ran Wolf without hickup. I only had 2 fail to feeds which resulted in short stroking in the first 150 rounds but has eaten about 1400 wolf since then without any problems. That was only in the three months that I was actively shooting last year though.
    Quote Originally Posted by Coal Dragger View Post
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    Beyond that everything else is a crap shoot.

  5. #15
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    I have the exact same upper and lower.
    I haven't run anything but m193 through it.
    I can tell you that when I pulled the FSB to install a FF, the gas port read .062 on my calipers.
    This isn't exactly the most accurate way to measure the port, but it told me that the gun was not likely to be overgassed.
    Will it run underpowered ammo? I'm not sure, but I will try some out in the near future.

    The cheapest thing you can do right now is buy a standard carbine buffer for under $10.
    I assume you have the upper group well lubed?
    Quote Originally Posted by scottryan View Post
    Anybody that owns or sells pistol versions of assault rifles is a bottom feeder, irregardless of the ban status of certain ammunition.

    They are illigetimate weapons that have no real purpose other than to attract retards to the gun community.

  6. #16
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    Quote Originally Posted by polymorpheous View Post
    Herters is polymer coated.
    Rebranded Tula.

    Rubbing 2 rounds together?
    This sounds like TOS type silliness.
    Not TOS silliness at all... If it was the same stuff with a polymer coating it was causing FTF coming out of the mag and I noticed it when loading and unloading the mags as well as when rubbing or sliding two rounds together as if they are being feed out of a mag.


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  7. #17
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    Quote Originally Posted by n517rv View Post
    Not TOS silliness at all... If it was the same stuff with a polymer coating it was causing FTF coming out of the mag and I noticed it when loading and unloading the mags as well as when rubbing or sliding two rounds together as if they are being feed out of a mag.


    Sent from my Sprint EVO via Tapatalk
    #1 Brown bear is not polymer coated.
    #2 The OP was shooting Golden Bear, brass coated steel cased ammo.
    #3 The issue here isn't the coating that is on the steel case.
    Quote Originally Posted by scottryan View Post
    Anybody that owns or sells pistol versions of assault rifles is a bottom feeder, irregardless of the ban status of certain ammunition.

    They are illigetimate weapons that have no real purpose other than to attract retards to the gun community.

  8. #18
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    Quote Originally Posted by nimdabew View Post
    For what it is worth, my BCM upper needed about 150 rounds before it ran Wolf without hickup. I only had 2 fail to feeds which resulted in short stroking in the first 150 rounds but has eaten about 1400 wolf since then without any problems. That was only in the three months that I was actively shooting last year though.

    Interesting. Mine literally chokes on every single round that's fed from the magazine. I wish it was only twice in 150 rounds at this point

    Quote Originally Posted by polymorpheous View Post
    I have the exact same upper and lower.
    I haven't run anything but m193 through it.
    I can tell you that when I pulled the FSB to install a FF, the gas port read .062 on my calipers.
    This isn't exactly the most accurate way to measure the port, but it told me that the gun was not likely to be overgassed.
    Will it run underpowered ammo? I'm not sure, but I will try some out in the near future.

    The cheapest thing you can do right now is buy a standard carbine buffer for under $10.
    I assume you have the upper group well lubed?
    Yeah, the carbine buffer is something I will be trying soon for sure. If you do shoot any poo through yours anytime soon, let me know how it runs.

    If I run a carbine buffer is that going to cause any other issues or is that what I should be running in the first place?

  9. #19
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    Quote Originally Posted by djmorris View Post
    It does start to feed but it gets lodged in about half way with the tip sticking out.
    OK, followups...
    my suggestion for the AR in general but especially for running steel-cased ammo is to lube, like to the point of dripping, the BCG.

    Next, load one round, fire, and check to see if the bolt locks to the rear. If it does, repeat ten times or so.

  10. #20
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    I've got a similar setup, standard BCM 16" midlength upper, BCM blem lower, BCM BCG, PMags. It's got over 1000 rounds of Brown/Silver Bear through it with 0 failures.
    I doubt it's the ammunition.

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