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The C was to indicate the powder burned "cooler" than traditional Improved Military Rifle (IMR) powders. [4] In 1949, he began acquisition of powder salvaged from disassembled Oerlikon 20mm cannon cartridges. This powder resembled IMR 4350 in appearance, and with a slower burning rate, was initially marketed as "4350 Data", and later as 4831. [5]
Black powder was the first explosive ever invented, and was the primary propellant used firearms around the world for many centuries. However, in modern times, smokeless powder has largely replaced black powder as the most common firearm propellant.
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 ...
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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.
In the 1870s the 3 1 ⁄ 4-inch cartridge was necked down to .45-inches to create the .500/450 Magnum Black Powder Express which in turn, when loaded with cordite, became the .500/450 Nitro Express. After the British government's 1907 ban of .450 caliber ammunition to India and Sudan, the .500/465 Nitro Express and the .470 Nitro Express were ...
American Powder Company reorganized as American Powder Mills in 1883 with business offices in Boston. The facility was sold to American Cyanamid in 1929, with gunpowder production continuing to 1940. In addition to black powder for blasting and other purposes, APM made smokeless gunpowder for shotgun-using hunters under the brand name "Dead ...
St. Marks Powder is a subsidiary of General Dynamics Ordnance and Tactical Systems manufacturing ball propellant [1] in Crawfordville, Florida. St. Marks makes about 6,000 tons per year, [2] making it the world's largest producer of propellant. [3] The company is a member of the Sporting Arms and Ammunition Manufacturers' Institute (SAAMI). [4]