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The .454 Casull (/ k ə ˈ s uː l /) [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]
The .45 BPM uses the .460 S&W Magnum brass casing as its container. The .460 S&W Magnum was derived from the .454 Casull while the .454 Casull was derived from the .45 Colt. Because of this lineage the .460 S&W Magnum has similar dimensional attributes to the .45 Colt with the exception of a much longer casing.
The .460 S&W round is a lengthened, more powerful version of the popular .454 Casull, itself a longer and more powerful version of the .45 Colt.For this reason, the .460 S&W Magnum can be considered an example of a "super magnum".
Conceptually similar cartridges include the .500 Linebaugh, .500 JRH, .475 Linebaugh, and .454 Casull. However, the .500 Wyoming Express is somewhat more powerful than these rounds. It is ballistically comparable to the .500 Maximum, 50-70 Government, and .50 Beowulf cartridges, which are usually chambered in substantially larger firearms.
.454 Casull. This magnum revolver cartridge, a lengthened .45 Colt , was developed by Dick Casull and Jack Fulmer in 1957 as a high-powered big game hunting round. For many years, the small Wyoming manufacturer Freedom Arms was the only substantial maker of guns for the cartridge.
The Hodgdon Powder Company began in 1952 as B.E. Hodgdon, Inc., and has become a major distributor of smokeless powder for the ammunition industry, as well as for individuals who load their own ammunition by hand. The company's corporate office and manufacturing facilities are located in Kansas, United States.
.455 Webley is a British handgun cartridge, most commonly used in the Webley top break revolvers Marks I through VI. It is also known as ".455 Eley" and ".455 Colt".The .455 cartridge was a service revolver cartridge, featuring a rimmed cartridge firing a .455 in (11.5 mm) bullet at the relatively low velocity of 650 ft/s (190 m/s).
The .45 Colt became the basis for the much more powerful .454 Casull cartridge, with the .454 Casull having a slightly longer case utilizing a small rifle primer in place of the large pistol primer. Any .454 Casull revolver will chamber and fire the .45 Colt and the .45 Schofield , but not the inverse due to the Casull's longer case.