338 378 Weatherby Ammo
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MSRP:$28.89
Used Price:
$26.54
Sale Price:
$29.49
Ammo Stats
From$26.67
See DealRoy Weatherby developed the 338-378 Weatherby Magnum as a wildcat cartridge based on a belted version of the huge 416 Rigby round necked down to.375". In 1953, this cartridge was released as a Weatherby exclusive. Elmer Keith and Bob Thompson of the United States invented the wildcat.338-378 in the 1960s by shortening the.378 case slightly and necking it down to.338". Weatherby accepted the.338-378 Weatherby based on the full length.378 case as a factory cartridge in 1998, owing to persistent interest in the
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wildcat, and it was formally added to their product range.
The case capacity of the 338-378 Weatherby Magnum is approximately 8.1 g. (125 gr). Bullets for the.338-378 Weatherby Magnum range in weight from 11.7 g (180 gr) to 19.4 g (300 gr) and are available in boat-tail hollow-point, boat-tail pointed soft, pointed soft point, heavy jacketed pointed soft point, partition, multi-core, truncated solid, and monolithic solid constructions. Weatherby was able to design the more powerful once the.338" caliber was standardized. In 1962, 340 Weatherby was built.
The 338-378 Weatherby has a smattering of fans who use it to hunt large animals at long ranges. The 338-378 Weatherby, like its cousins, uses a lot of freebore to achieve high speeds without undue pressure. The.338-378 is a formidable weapon for hunting large game, while it may be considered overkill for smaller species. In a rifle with a 71 cm (28 in) barrel, a Weatherby factory cartridge loaded with a 16.2 g (250 gr) hunting bullet will produce a muzzle velocity of 933 m/s (3060 ft/s) and muzzle energy of 7046 J (5197 ft lbf). This identical bullet will have a downrange velocity of 648 m/s (2125 ft/s) and an energy of 3391 J (2501 ft lbf) at 457 m (500 yds)..338-378 Weatherby For Sale
Technical Data
.338-378 Weatherby Comparisons
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