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The .378 Weatherby Magnum was designed by Roy Weatherby in 1953. [ 3 ] [ 4 ] Although inspired by the .416 Rigby , it is an original belted magnum design with no parent case. [ 5 ] The cartridge features a high powder capacity relative to its bore size, and can hold upwards of 7.13 g (120 gr ) of powder.
The .30-378 Weatherby Magnum is a .30 caliber, belted, bottle-necked rifle cartridge. [2] The cartridge was developed in response to a US Army military contract in 1959. While still unreleased to the public, the cartridge went on to set world records for accuracy including the first ten 10X in 1,000 yards (910 m) benchrest shooting. [ 3 ]
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.
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."
The .338-378 Weatherby Magnum is based on the .338-378 KT, a wildcat cartridge created by Elmer Keith and R.W. "Bob" Thomson in 1966. [2] The KT is based on the .378 Weatherby Magnum cartridge but is shorter by 1/4" and necked down to a .338 caliber bullet. [ 3 ]
Weatherby started manufacturing Weatherby Guns in his garage at the Huntington Park home. Weatherby firearms are best known for their very high-powered rifle cartridges, all bearing the name Weatherby Magnum such as the .257 Weatherby Magnum (designed in 1944), the .378 Weatherby Magnum (1953) and the .460 Weatherby Magnum (1957), and for the ...
As the "K-38 Combat Masterpiece", this revolver was first purchased in 1956 for the Strategic Air Command Elite Guard of the United States Air Force. From 1960 to 1969 the Air Force bought large numbers of Model 15–1, 15–2, and 15-3 revolvers with a 4" barrel. The only distinctive markings are "U.S.A.F" on the left side of the frame.
7mm Weatherby Magnum.30-378 Weatherby Magnum.224 Weatherby Magnum.240 Weatherby Magnum.257 Weatherby Magnum.270 Weatherby Magnum.300 Weatherby Magnum; 6.5-300 Weatherby Magnum.338-378 Weatherby Magnum.340 Weatherby Magnum.375 Weatherby Magnum.378 Weatherby Magnum.416 Weatherby Magnum.460 Weatherby Magnum