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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 ...
Cordite is a family of smokeless propellants developed and produced in Britain since 1889 to replace black powder as a military firearm propellant. Like modern gunpowder, cordite is classified as a low explosive because of its slow burning rates and consequently low brisance [not verified in body].
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.
To test the carbon-clearing capabilities of COF-999, the researchers packed the powder into a stainless steel tube about the size of a straw and exposed it to outdoor Berkeley air for 20 days ...
The United States military replaced black powder during the first decade of the 20th century with smokeless powders formulated from nitrocellulose colloided with ether and alcohol. [2] Large quantities were manufactured for World War I and significant amounts remained unused after the war. Nitrocellulose deteriorates in storage, but military ...
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]