.378 Weatherby Magnum

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.378 Weatherby Magnum

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Roy Weatherby designed the 378 Weatherby Magnum in 1953 as a unique belted magnum cartridge with no parent case. The 416 Rigby and the belted 375 H&H Magnum provided inspiration for the design. The 378 was created to replace the 375 Weatherby Magnum, and it has deep penetration and bone-crushing force. The.378 Weatherby was the world's most powerful.375 caliber cartridge until the advent of the.375 CheyTac (after 2002). Weatherby still utilized this cartridge as the basis for the creation of later models like the 460 Weatherby.. The 378 Weatherby Magnum is 200fps faster than the.375 Weatherby, 300fps faster than hand loads for the.375 H&H, and 400fps faster than factory.375 H&H ammo. When employed against the medium game, as well as large-bodied deer and antelope species, the.378 provides injury that is vastly disproportionate to caliber at conventional hunting ranges, resulting in an exceptionally swift killing. The.378 Weatherby is particularly successful even when hunting huge animals. Overall, the 378 Weatherby Magnum is a safari grade cartridge that is suitable for hunting all African game species, including giant African antelopes, Nile crocodiles, and hippopotamuses. Its remarkable performance is accompanied by a significant amount of free recoil, which averages 104 J (77 ft lbf) from a 4.1 kg (9 lb) rifle, which is easily equal to the 27 J (20 ft lbf) from a rifle chambered for.30-06 Springfield or 49 J (36 ft lbf) from a rifle chambered for.375 H&H Magnum. The 378 has been one of the world's most popular cartridges for the largest of big game species since 1955, and it's easy to see why given its performance.

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