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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 ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 28 January 2025. American multinational home improvement supplies retailing company The Home Depot, Inc. An aerial view of a Home Depot in Onalaska, Wisconsin Company type Public Traded as NYSE: HD DJIA component S&P 100 component S&P 500 component Industry Retail (home improvement) Founded February 6 ...
Some machine gun and autocannon cartridges (such as the MG 131 13mm and M61 Vulcan 20mm) utilize an internal electric primer that contains chemicals activated by an externally provided electric charge, as opposed to a mechanical impact. The primer in turn ignites the main propellant, just as with a shock-sensitive or external electric type.
Cutting speed may be defined as the rate at the workpiece surface, irrespective of the machining operation used. A cutting speed for mild steel of 100 ft/min is the same whether it is the speed of the cutter passing over the workpiece, such as in a turning operation, or the speed of the cutter moving past a workpiece, such as in a milling operation.
Along with being able to use a standard percussion cap, the Sharps has an unusual pellet primer feed. This is a device which holds a stack of pelleted primers and flips one over the nipple each time the trigger is pulled and the hammer falls—making it much easier to fire a Sharps from horseback than a gun employing individually loaded ...
The Lawrence Pellet Primer System was a development of the Sharps rifle, which was discontinued in 1863. The system was designed to mechanically place the primer which ignites the black powder of the rifle. This feature was to be used when a high rate of fire was needed, or when the weather was too cold to manually place individual primers on ...
A rimfire firing pin produces a notch at the edge of the case; a centerfire pin produces a depression in the center of the primer. Rimfire ammunition is so named because the firing pin strikes and crushes the base's rim to ignite the primer. The rim of such a cartridge is essentially an expanded and flattened end section of the case, and the ...
The Lee Hall Depot was built in stages, to a standardized design used for all Chesapeake and Ohio Railway freight houses. Its construction began sometime in 1881. The initial building was a simple one-story freight depot building measuring 25 feet (7.6 m) by 50 feet (15 m), with five double sliding doors along the freight platform.