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Consequences of black powder's easy ignition by sparks or static electricity make manufacture and storage hazardous. The sole factory of the United States' largest 20th-century black powder manufacturer was closed by an accidental explosion as 1970 legislation established new regulations discouraging merchants from stocking black powder for sale.
There are 7,000 grains in one pound. Black powder substitutes are formulated to be a volume-for-volume equivalent of black powder, not an equivalent mass-for-mass (weight-for-weight). Black powder substitutes are measured by volumetric measurement techniques, not in grains on a scale, due to the difference in density compared to black powder.
The term black powder was coined in the late 19th century, primarily in the United States, to distinguish prior gunpowder formulations from the new smokeless powders and semi-smokeless powders. Semi-smokeless powders featured bulk volume properties that approximated black powder, but had significantly reduced amounts of smoke and combustion ...
The .50-90 Sharps (13x64mmR), also known as the .50-2 1 ⁄ 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 .577 Black Powder Express was the go-to dangerous game caliber from the 1870s through 1900. It spawned the .577 Express around 1890, which used smokeless cordite instead of black powder, and then the .577 Nitro Express in 1900, which used modern metal jacketed and solid bullets pushed by more modern smokeless powders.
A powder keg is a barrel of gunpowder. The powder keg was the primary method for storing and transporting large quantities of black powder until the 1870s and the adoption of the modern cased cartridge. The barrels had to be handled with care, since a spark or other source of heat could cause the contents to deflagrate.
The 11mm French Ordnance is a rimmed black powder cartridge intended for the 11 mm MAS 1873-1874 revolver in service with the French Army. [1] The velocity and power of the first variant, equivalent to the .25 ACP at just 74 ft/lbs of energy, was weak even for its time.
The .50-140 Sharps, also known as the .50-3 1 ⁄ 4" Sharps, is a black-powder rifle cartridge that was introduced in 1884, as a big game hunting round. [1] It is believed to have been introduced for the Sharps-Borchardt Model 1878 rifle. [2]
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