Buckshot differs from Bird-shot in that Buckshot is on the larger end of the size scale, and it is swagged "pure", soft lead while cold. Whereas Bird-shot is poured from molten lead from a shot tower, with added elements to effect the properties, namely hardness (Antimony), and roundness via increased surface tension (Arsenic). Buckshot differs from "Round Ball" (a single round ball), in that a loading of Buckshot always contains multiple projectiles of less than bore diameter.
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