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I have a question about the various materials used for bulletproof glass, their strengths and what they can stop but I'm not sure where to ask.

In the TV show the 'The Punisher' is a scene where he attempt to kill a man standing at his window with a sniper. To his surprise the glass stops, what I assume is, a 50cal sniper shot. Based on a quick Google search it would take 3in of polycarbonate to stop that and a 1ft of tempered glass. The window in question definitely wasn't that thick so I'm wondering is there a material of which an inch or less could stop a 50cal sniper round or was that complete fiction?

I was thinking probably Physics or Engineering?

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  • site-recommendation: "Give as much detail as possible about the question you'd like to ask"
    – jonrsharpe
    Aug 4, 2023 at 10:20
  • @jonrsharpe what further details should I provide?
    – Ethan
    Aug 4, 2023 at 10:34
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    The easiest thing to do is include the question, as a block quote. Then it's unambiguous what you're intending to ask.
    – jonrsharpe
    Aug 4, 2023 at 10:37

2 Answers 2

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I'm not sure where you'd ask questions about bulletproof glass in general, but this particular question would actually be on-topic on Movies & TV. Fundamentally, you're asking whether a plot element in a TV show (a relatively thin window being able to stop a 50cal sniper round) is realistic or not, and such questions are accepted there under the "realism" tag.

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If you want to focus the question on whether a material exists that could be used for the purpose (it would not only have to have the physical properties, but be transparent, after all) - regardless of whether it's actually used for such in the real world - Physics.SE does make sense; there's a material-science tag. Engineering.SE does have a "materials" tag, but it's less popular and seems particularly focused on doing engineering calculations in practical rather than theoretical situations.

If you aren't asking this as a matter of movie realism, I would trim back the motivation section of the question and get right the point: is there a material with those properties?

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