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【Chinatungsten Online News Net- Tungsten News】

Larger sizes of shot, large enough that they must be carefully packed into the shell rather than simply dumped or poured in, are called "buckshot" or just "buck", Buckshot is used for hunting larger game, such as deer (hence derivation of the name), Buckshot size is designated by actual diameter or (traditionally) by letter or number, with smaller numbers being larger shot, sizes larger than "0" ("aught") are designated by multiple zeros. "00" ("double-aught") is the most commonly used size.

Tungsten buckshot is often alloyed with nickel and iron, softening the base metal, that alloy is approximately 1/3 denser than lead, but far more expensive, Bismuth shot falls between steel and tungsten shot in both density and cost, the rule of thumb in converting appropriate steel shot is to go up by two numbers when switching from lead, however, there are different views on dense patterns versus higher pellet energies.