The .50-90 Sharps (13×64mmR), also known as the .50-21⁄2" Sharps, is a black-powder rifle cartridge that was introduced by Sharps Rifle Manufacturing Company in 1872 as a buffalo (American bison) hunting round. Like other large black-powder rounds, it incorporates a heavy bullet and a large powder volume, leading to high muzzle energies.
The .50-90 Sharps (13×64mmR), also known as the .50-21⁄2" Sharps, is a black-powder rifle cartridge that was introduced by Sharps Rifle Manufacturing Company in 1872 as a buffalo (American bison) hunting round. Like other large black-powder rounds, it incorporates a heavy bullet and a large powder volume, leading to high muzzle energies.
Source: Wikipedia ".50-90 Sharps" · CC BY-SA 4.0
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