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These powder measures typically use gravity feed from a hopper of powder above an adjustable cavity in a rotating cylinder. [3] A lever rotates the cylinder so the cavity moves between an upward position where powder can drain from the hopper into the cavity, and a lower position where the powder can drain from the cavity into an empty ...
Components of a modern bottleneck rifle cartridge. Top-to-bottom: Copper-jacketed bullet, smokeless powder granules, rimless brass case, Boxer primer.. Handloading, or reloading, is the practice of making firearm cartridges by manually assembling the individual components (metallic/polymer case, primer, propellant and projectile), rather than purchasing mass-assembled, factory-loaded ...
The wide mouth was used for refilling, while the powder was dispensed from the narrow point. In some cases the point was closed and the mouth used for both, with a powder measure, a type of scoop used to dispense the powder, and in others both ends were open and the horn merely used as a funnel. The horn was typically held by a long strap and ...
A gas pycnometer is a laboratory device used for measuring the density—or, more accurately, the volume—of solids, be they regularly shaped, porous or non-porous, monolithic, powdered, granular or in some way comminuted, employing some method of gas displacement and the volume:pressure relationship known as Boyle's law.
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 8"/55 caliber gun (spoken "eight-inch-fifty-five-caliber") formed the main battery of United States Navy heavy cruisers and two early aircraft carriers. United States naval gun terminology indicates the gun barrel had an internal diameter of 8 inches (203 mm), and the barrel was 55 calibers long (barrel length is 8 inch × 55 = 440 inches ...
William Lyman was born in 1821 in Middlefield, Connecticut. At the age of 15 he was apprenticed to the local company Griswold & Couch, located in Meriden, Connecticut, to learn pewtersmithery , and worked there until 1844.
The .38-55 Winchester / 9.6x53mmR cartridge (actually .3775 caliber), also known as the .38-55 WCF and the .38-55 Ballard, [4] is a centerfire rifle cartridge. It was based on an earlier cartridge called the .38-50 Ballard Everlasting that was introduced in 1876 by the Ballard Rifle & Cartridge Company .