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For example, because Pyrodex, a common black powder substitute, is less dense than black powder, a measurement by weight on a scale of 60 grains of mass of Pyrodex would be near a 30 percent overload. Volume equivalence is a benefit in loading muzzleloading firearms, traditionally loaded using volumetric measures.
The .450/400 Black Powder Express cartridges are bottlenecked centerfire black powder express rifle cartridges produced in two case lengths, 2 3 ⁄ 8 inches (60.3 mm) and 3 1 ⁄ 4 inches (83 mm). Both cartridges were later loaded as "Nitro for Black" cartridges, the same cartridges loaded with mild loadings of cordite carefully balanced ...
The original military trial "long chamber" cartridge was loaded with a bullet weighing 480 grains (31 g), although for military use it was found to be awkwardly long and difficult to handle and to load, in response Eley Brothers developed the much shorter, bottlenecked .577/450 Martini–Henry cartridge.
The .50-140 was created for big game hunting, and was the most powerful of the Sharps Bison cartridges. [5] However, it was introduced about the time of the end of the great Bison herds. [6] An obsolete round, ammunition is not produced by any major manufacturer although reloading components and brass can be acquired or home-built.
In the modern day, it is used for Black Powder Cartridge Rifle competitions. [1] While various bullet weights were used, a typical load for the .45-90 was a powder charge 90 grains (5.8 g) gunpowder (black powder) with a bullet weighing 400 grains (26 g). Such a load would have had a muzzle velocity of around 1,300 ft/s (400 m/s).
QuickLOAD has a default database of predefined bullets, cartridges and propellants. The database of the more recent versions of QuickLOAD also include dimensional technical drawings of the predefined cartridges and for most cartridges photographic images. Data can later be imported or entered by the user to expand the programs database.
The test cartridge must be inserted into the chamber in such a way that the hole in the test cartridge case lines up with a gas port hole that channels the gas pressure from the cartridge case to the face of the sensor. The measurement accuracy of the pressure measurements with 21st century high-pressure sensors is expected to be ≤ 2%. [7]
Hodgdon's product line includes Pyrodex and Triple Seven, which are modern substitutes for black powder and intended for use in muzzleloaders and certain antique firearms. 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 ...