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Thread: A few videos I made discussing magazines

  1. #1
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    Ive read some of your reviews before, do you ever get tired of breaking shit?
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    No - breaking shit is fun!

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    I wish i had the extra stuff to break, err I guess I do, but I get a sick feeling everytime I think about breaking my stuff
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    Well, if it gives me an idea of which gear I can push the hardest, and how it will break when it does break, and how I can salvage the parts if I need to, then it is "stuff well broken" IMHO.

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    Is the crush test valid? I can't understand what type of normal wear and tear this relates to. I guess it's a good thing if you operate in rocky terrain where small boulders are falling off cliff faces, but otherwise this test just relates to careless abuse like leaving them lay in a field and subsequently running over them with a lawn mower or something. I get it, they're tough, but negligence aside these tests don't mean anything. Why not instead measure the force required to permanently spread the feed lips or something?

    Otherwise, thanks for destroying the mags; I feel better about any future purchase.

  7. #7
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    The purpose was to find out which magazines would function with extreme damage to the mag bodies, and when each would break. As it turns out, once the magazines were "broken", they were nonfunctional - with the exception of the magazine shown in that video. The upper half was itself divided in half and only held together by the bond with the lower half. To me that is extreme damage. Some other magazines showed very little signs of damage (which occurred at much lower pressures) and yet were completely nonfunctional. Some magazines were rendered nonfunctional the instant pressure registered on the gauge, let alone reached 1 or 2 tons.

    In essence the very fact that you ask about the validity of the tests proves their usefulness. The amount of damage required to render this magazine nonfunctional exceeds everything that could reasonably be encountered in a duty or combat situation. At first, my answer to your question may seem ridiculous, but think about it.

    I am going to conduct more tests (involving magazines exposed to extreme cold, then dropped loaded and pressure-tested), these are not the only videos I will put out.

    That is a good idea regarding the feed lips - I will see what I can do. Although I am going to be running out of magazines after a few more rounds (15 destroyed so far).

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    Quote Originally Posted by 87GN View Post
    Some other magazines showed very little signs of damage (which occurred at much lower pressures) and yet were completely nonfunctional. Some magazines were rendered nonfunctional the instant pressure registered on the gauge, let alone reached 1 or 2 tons.
    Which mags were which?

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    Lancer mags look like they might work, but don't work, at about 1 1/2 tons, probably would have been nonfunctional earlier. They lasted much longer than I thought they would.

    CProducts Aluminum mags were broken immediately. The body itself hardly had a chance to deform before the welds broke. I also saw (rather extensive) signs of surface corrosion on the unfinished portions of the magazine which were exposed when the welds broke.

    The breakdown...

    Weight distributed over body:
    CProducts Aluminum - Close to zero (broken welds front and back, broken follower, floorplate failure)
    CProducts Steel - 1 ton (broken follower, crushed body)
    USGI Okay - 1 ton (crushed body, crushed floorplate)
    Lancer L5 - 1 1/2 tons (deformed body, not functional, restricted follower travel)
    HK Steel - 2 tons (crushed body, follower frozen, floorplate failure)

    Weight concentrated on feed lips:
    Magpul PMAG - ~3 tons (broken follower, severely deformed spring, broken magazine body, nonfunctional)
    TangoDown ARC - ~3 tons (intact follower, barely deformed spring, broken upper magazine body, semi functional)

    Both polymer mags started showing cracks and deforming before they broke, but both would probably have been functional. Both "broke" at pretty much the same point. In the case of the PMag the follower came apart and shot pieces across the shop. In the case of the ARC mag the upper half broke down the front and rear as seen in the video.
    Last edited by 87GN; 03-26-09 at 19:58.

  10. #10
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    Thanks for that summation. So no welds broken on the OK mags then? Any chance you could test the quality of the welds on ALL the popular USGI and clone mags? That weld weakness on the CP AL mags speaks volumes.
    Last edited by kingc; 03-27-09 at 01:35.
    .

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