Definitive ways to test bullet resistance - bulletproof glass testing

Discussion in 'Firearm Related' started by NTA, Dec 23, 2018.

  1. moe mensale

    moe mensale Well-Known Member

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  2. NTA

    NTA Well-Known Member

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    I'm thinking a solid frame might allow the bullets better penetration. Someone holding it, well there is some 'give' to it as the glass absorbs the hit over a much longer period of time.
     
  3. gunsmoker

    gunsmoker Lawyer and Gun Activist

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    I'm thinking the rifle was a .22 rimfire, possibly loaded with shorts. 29 grain bullets at 1000 f.p.s.
     
  4. gunsmoker

    gunsmoker Lawyer and Gun Activist

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    The woman was holding that little pane of glass away from her face, over her shoulder, most of the time.

    Here's a more "definitive" way to demonstrate bulletproof glass-- in this case, a windshield.



    As the president of the company that made it sits behind the windshield, an employee with an AK-47 blasts 3 shots into it. I assume they're standard lead-core FMJ bullets. But at 123 grains, and an M/V of 2350 f.p.s., they hit with about 1500 foot-lbs. energy.
    Serious impacts, there.

    Compare to a .22 LR 40 grain standard velocity at 1050 f.p.s. for 100 ft/lbs energy.
     
  5. moe mensale

    moe mensale Well-Known Member

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    eFootage.com claims it's a .25-20 WIN cartridge. No mention of bullet weight. There are available loadings of 60-86 grain bullets with velocities of 2,100-1,600 fps. It's a little screamer.