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Thread: Regurgitation of AR myths making them "facts"

  1. #191
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    Another myth...

    "The M193 is designed to be instable. In fact, it will begin to tumble even after passing through a piece of rice-paper."

    I heard that one several times over the years...
    -Steve
    Have gun, will travel...
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  2. #192
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    Quote Originally Posted by wolf_walker View Post
    Was that where the insert mag and slap it hard on the bottom thing came from?
    ..and all of the subsequent bolt-overrides? Yes.
    Dave Merrill
    Terrible Technical Writer. Awful Photographer. Lazy Instructor. Kind of a dick.
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  3. #193
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    Quote Originally Posted by QuadBomb View Post
    When I did my tour in A-stan last year we all got issued 180 rounds. I had my 6 PMags with me and I kept each one fully loaded with 30 all the time. I went condition 3 all the time without any problem, just had to give the mag a good slap on the bottom and they would click into place.

    Edit: My understanding is that we leave 2 rounds out because the mags won't seat on a closed bolt with 30. Someone correct me if I'm wrong.
    you can actually cram 31 in a p-mag in my experience. the extra space being so that when loaded to 30 it seats fairly easily.

  4. #194
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    Quote Originally Posted by Iraqgunz View Post
    "should"
    If there isn't then the magazine isn't correct and you shouldn't use it.

  5. #195
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    It is amazing how many of these myths I have heard in the barracks, at the range or the LGS.

    Only one I haven't seen in the thread.

    AR Myth: "You cannot zero an AR in 5.56/.223 at 50 yards. It is physically impossible."

    Cameron
    Last edited by Cameron; 08-03-11 at 00:56.
    Quote Originally Posted by Failure2Stop View Post
    In case anyone is keeping score, Cameron just won.
    Quote Originally Posted by Magic_Salad0892 View Post
    Cameron won again.

  6. #196
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    This has happened with brand new, out of the package issued magazines. So in my book downloading by two is just an insurance policy. YMMV.

    Quote Originally Posted by Tweak View Post
    If there isn't then the magazine isn't correct and you shouldn't use it.



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  7. #197
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    Quote Originally Posted by Cameron View Post
    It is amazing how many of these myths I have heard in the barracks, at the range or the LGS.

    Only one I haven't seen in the thread.

    AR Myth: "You cannot zero an AR in 5.56/.223 at 50 yards. It is physically impossible."

    Cameron
    Uh oh not that one again

  8. #198
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    Quote Originally Posted by Dave_M View Post
    ..and all of the subsequent bolt-overrides? Yes.
    How does this happen? I've never had it happen to me.

    I load to 30, and replace magazine springs every 6 months.
    We miss you, AC.
    We miss you, ToddG.

  9. #199
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    Quote Originally Posted by Magic_Salad0892 View Post
    How does this happen? I've never had it happen to me.

    I load to 30, and replace magazine springs every 6 months.
    It has more to do with 'slapping the bottom of the magazine' than anything else. If you slap the bottom of a magazine and the mag is worn out and the bolt is locked to the rear, it can cause a round to pop out and wedge itself between your bolt and upper receiver. It's a real bitch to clear.
    Here's a pic google gave me:
    http://4.bp.blogspot.com/_p2CS3e4PGs..._Over_Bolt.jpg
    another:
    http://quib.weaponevolution.com/Bolt%20Override.JPG
    another:
    http://i122.photobucket.com/albums/o...6/_DSC0511.jpg

    In regards to inspecting magazines for wear: Check for cracks/weld separation on the spine. Check feed lips. If it doesn't pass those tests, I mark them and throw them in the, 'training' pile. Once they double-feed, I toss them.

    To check feed lips without a gauge I do the following:
    Every in-spec magazine should easily drop-free from a in-spec lower both when loaded and unloaded. Bearing this in mind,
    -insert empty magazine, release it. If it doesn't drop free, it can be indicative of feed-lip spreading (the added friction of spread feed lips retards the movement).
    -Do the same with the magazine loaded.
    -If it passes both of those tests, hold the loaded magazine in your hand and smack the bottom. If rounds pop out, it fails.

    Most of the time a mag will fail those tests before it starts to double-feed on you.

    Anywho, this is the reason why a push/pull is recommended for seating confirmation rather than a slap.
    Dave Merrill
    Terrible Technical Writer. Awful Photographer. Lazy Instructor. Kind of a dick.
    Loves Tacos.

  10. #200
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    Quote Originally Posted by Cameron View Post
    It is amazing how many of these myths I have heard in the barracks, at the range or the LGS.

    Only one I haven't seen in the thread.

    AR Myth: "I zeroed my AR at 50 yards."

    Cameron
    Fixed it for you.

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