• HikingVet@lemmy.ca
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        5 days ago

        So to put far to much thought and effort in.

        Frangible rounds were designed for shooting steel. Essentially a target round.

        They are sintered from tin, copper or zinc or other appropriate metal alloy. They break up on impact of a “hard” surface. They have turned back to powder after hitting ballistic gel.

        Why would you use a target round to kill anything?

        • zarathustrad@lemmy.world
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          5 days ago

          Continuing this very silly premise…

          The Hustler magazine being made of metal plate seems unlikely.

          The rounds disappearing on impact with shredded paper is not explained by the frangible round hypothesis.

          However, it is possible he is using some advanced tech (indistinguishable from magic), as he has a time machine. Maybe he keeps his antique submachine gun stocked with less than lethal rounds that leave no round behind, though it still drops brass… Such are the mysteries of time travel.

          • HikingVet@lemmy.ca
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            5 days ago

            Paper is surprisingly dense. Frangible rounds don’t require steel plates to break up. Note the ballistic gel part og the comment.

            • zarathustrad@lemmy.world
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              5 days ago

              Based on my extensive research (of shooting everything I could find as a teenager), an open pornography magazine will not cause even a frangible (Glaser Safety Slugs or sintered copper and tin powder training rounds) to disintegrate. Heck they will pass though drywall sometimes.

              However a phonebook (Google it) will stop FMJ 9mm ACP. While 308 will penetrate the phone book and the tree trunk it was tied to.

              • HikingVet@lemmy.ca
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                5 days ago

                Either way, whatever slug he was using would be hilariously underpowered for anything other than tearing paper.

                Having a target round of any sort loaded with the gun sitting on the rack seems odd and somehow an American thing.

                • zarathustrad@lemmy.world
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                  5 days ago

                  My ridiculous hypothesis of it being a low penetration weapon designed for time travelers to leave no trace when traveling to the 1942-1957 time period when the M3 was still in use was a bit of a stretch.

                  However Having a weapon loaded with non penetration rounds for home defence is the American Way, despite a fully automatic SMG being a comically poor choice.