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IIRC one of my students did a research project for the college on ballistics and they used a 55 gallon barrel for .32 Acp, .380, and 9mm handguns. They stood on a back deck and shot straight down into the barrel.
I recall him saying that the professor that was mentoring him said that a 55 gallon drum also stopped expanding ammo ( soft points ) in every rifle cartridge he tried.
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You are the bows from which your children as living arrows are sent forth.
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