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The .22 Winchester Magnum Rimfire, also known as the .22 WMR, .22 Magnum, .22 WMRF, .22 MRF, [2] or .22 Mag, is a rimfire cartridge.Originally loaded with a bullet weight of 40 grains (2.6 g) delivering velocities in the 2,000 feet per second (610 m/s) range from a rifle barrel, .22 WMR is now loaded with bullet weights ranging from 50 grains (3.2 g) at 1,530 feet per second (470 m/s) to 30 ...
Elmer Merrifield Keith (March 8, 1899 – February 14, 1984) [2] was an American rancher, firearms enthusiast, and author. Keith was instrumental in the development of the first magnum revolver cartridge, the .357 Magnum (1935), as well as the later .44 Magnum (1956) and .41 Magnum (1964) cartridges, credited by Roy G. Jinks as "the father of big bore handgunning."
A magnum cartridge is a firearm cartridge with a larger case size than, or derived from, a similar cartridge of the same projectile caliber and case shoulder shape. [ clarification needed ] The term derives from the .357 Magnum , the original revolver cartridge with this designation.
Although not originally designed for handguns, several rifle and shotgun cartridges have also been chambered in a number of large handguns, primarily in revolvers like the Phelps Heritage revolver, Century Arms revolver, Thompson/Centre Contender break-open pistol, Magnum Research BFR, and the Pfeifer Zeliska revolvers. These include:
Test barrel length: 7.5 in. Source (s): Hornady [2] DoubleTap [3] The .454 Casull (/ kəˈsuːl /) [4] is a firearm cartridge, developed as a wildcat cartridge in 1958 by Dick Casull, Duane Marsh and Jack Fullmer. [5] It was announced in November 1959 by Guns & Ammo magazine. The design is a lengthened and structurally improved .45 Colt case. [5]
In production. .22 Long, a cartridge predating the .22 LR, with the same case length using the lighter .22 short bullet. .22 Long Rifle (LR), the most common cartridge type of this caliber, often referred to simply as ".22 caliber" or "22". .22 Long Rifle Extra Long (LR EX), a variant of .22LR with a longer casing but identical overall ...
Performance. Smith & Wesson says that the .460 S&W is the highest-velocity revolver cartridge in the world, firing bullets at up to 2,409 feet per second (734 m/s). The .460 cartridge achieves high velocities by operating at chamber pressures (65,000 psi max) normally reserved for magnum rifle cartridges.
Dick Casull with a rifle. Richard J. Casull (/ kəˈsuːl /) (February 15, 1931 – May 6, 2018) [1] was a Salt Lake City -born [2] gunsmith and wildcat cartridge developer whose experiments with .45 Colt ammunition in the 1950s led to the creation of the .454 Casull cartridge. Casull's passion was six-shooters, and he was determined to create ...