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Wondering how long .357 supersonic lasts out of the 5 inch bbl. Do you think we get 50 yards before it drops to sub sonic?
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If you know the ballistic coefficient of the bullet, and the muzzle velocity, is that enough to at least calculate a rough estimate of how long it'll stay supersonic? I don't do any long-range shooting, but I've always assumed that's one of the pieces of information that ballistic calculators would give you.