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Now, with modern reloads, the .500 Jeffery can launch a 600-grain bullet at a muzzle velocity ranging from 2,450 to 2,500 ft/s (750 to 760 m/s), generating 7,995 ft⋅lbf (10,840 J) to 8,100 ft⋅lbf (11,000 J) Newer reloads made the .500 Jeffery the most powerful production cartridge in the world until the introduction of the .460 Weatherby ...
Below is a list of rebated rim cartridges. Rebated-rim cartridges have a rim that is significantly smaller in diameter than the base of the case, serving only for extraction. Functionally the same as a rimless case, the rebated rim allows a gun to be easily converted to fire a larger-than-normal cartridge, as most of a firearm's loading and ...
Overbore cartridges are those with a relatively large case volume or case capacity, coupled with a relatively small diameter bullet.. The case volume or case capacity and barrel bore area can be mathematically related to obtain a case volume to bore area ratio in metric or imperial units.
The first references to the possible use of polymers in the manufacture of casings come from the early 1950s. One of the earliest is the patent filed by Jack W. Roske in 1950 [1] and the idea was to use a metal cup joined with a polymer shell "that will be converted to gas during the firing phase to assist in propelling the projectile and thereby permit reduction in the use of the propelling ...
In recent times, the .404 case has seen a resurgence in use by wildcatters. This case has no belt, unlike many other magnum cartridges, which can be desirable for handloading because of possible problems with case head separation with repeated reloading of belted magnum cartridges. The rimless design also contributes to smooth feeding from the ...
The Positec Tool Corporation, or simply Positec, is a manufacturing company that specializes in the production of power tools and lawn and garden equipment. [1] The company's corporate headquarters are located in Suzhou, China [2] and the head of its North American division is located in Charlotte, North Carolina. [3]
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 .475 Linebaugh (12.1x36mmR) is a rimmed revolver cartridge developed by John Linebaugh in the late 1980s in response to the scarcity of the .348 Winchester brass required to form his .500 Linebaugh cartridge. [2] The cartridge is based on the .45-70 Government case trimmed to 1.4 inches and loaded with .475-inch-diameter (12.1 mm) bullets ...