I can tell you that a Col Officer's ACP will put a 230 grain ball round through about 7" of, for lack of a better word, human media, a layer of sheetrock, a fiberglass shower stall, the other side of the fiberglass shower stall, the sheetrock behind that, bounce off the ceiling, bounce off a closet door, and stop.
Sheetrock doesn't do much to stop bullets.
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