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C-6–C-7 The dram apothecaries is equal to 3 scruples (s ap or ℈) or 60 grains (gr), [5]: C-7 or exactly 3.887 9346 grams. [5]: C-14 "Dram" is also used as a measure of the powder charge in a shotgun shell, representing the equivalent of black powder in drams avoirdupois. [16]
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 ...
Contrary to urban legend, an M-80 that contains 3,000 mg of powder is not equivalent to a quarter-stick of dynamite. Dynamite generally contains a stable nitroglycerin-based high explosive, whereas M-80s or any other kind of firecracker contain a low explosive powder, like flash powder or black powder. [10]
Loads (bullet weights and gunpowder loads) varied greatly. As the weight and strength increased, gunpowder loads went from 8 drams (0.5 oz, 218.75 grains, or 14.17 grams) of powder to a full ounce (16 drams, 437.5 grains, or 28.35 grams). The advent of rifling after about 1860, allowed longer conical projectiles to be stabilised, and, aside ...
The .45 Colt originally was a black-powder cartridge, but modern loadings use smokeless powder. The original black-powder loads called for 40 grains (2.6 g) of black powder behind an Ogival & flat nosed 255-grain (16.5 g) lead bullet. These loads developed muzzle velocities of 1,050 ft/s (320 m/s).
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. For example, to measure a "60 grain equivalent" of black powder substitute suitable for use in a muzzleloader rifle, one uses a volumetric measure that produces a volume of black powder ...
The .450 Black Powder Express is a rimmed, straight walled, centerfire rifle cartridge designed for use with blackpowder. It was available in a number of loadings with bullets weighing from 270 to 365 grains (17.5 to 23.7 g), all driven by 120 grains (7.8 g) of black powder. [1] [3]
The .450/400 2 3 ⁄ 8 inch Black Powder Express was loaded with a bullets from 210 to 270 grains (14 to 17 g) driven by 79 to 84 grains (5.1 to 5.4 g) of black powder. The .450/400 2 3 ⁄ 8 inch Nitro for Black was loaded with a jacketed 270 grain round nose bullet driven by 38 grains (2.5 g) of cordite.