The essay was on arc-welding. The plates were 1 foot by 2 foot and written with a welding torch.

  • DannyBoy@sh.itjust.works
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    5 days ago

    Either those weren’t one inch thick or they didn’t shoot through them with a firearm and made clean holes.

    • dogslayeggs@lemmy.world
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      5 days ago

      Yeah, disregarding the ability of a bullet going through an inch of steel, that clean of a hole looks more like a drill.

        • dogslayeggs@lemmy.world
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          5 days ago

          Part of it is the holes are fairly uniform, but the big tell is no “flaps” poking outward. A drill removes material as it drills, so only a little is left over to flap out when the drill pokes through. A bullet would have to push ALL of the material from the hole outward, which would be a lot of material for a one inch thick hole.

            • dogslayeggs@lemmy.world
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              5 days ago

              From the photo it looks to me like there is some material being pushed out the front from the back, so unless you know of a way that a high speed bullet moving toward a metal sheet would pull material backward as it moves forward then it would be hard for it be shot from the front.