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The History of Magnum Rifle Cartridges
The term magnum is of Latin origin, and is traditionally used to refer to an oversize bottle of wine or champagne. It has come to mean an oversized cartridge, generally with a belt at the head of the case. The first magnum cartridge to be introduced was the .375 H&H Magnum, originally known as the "Nitro Express." It was followed by calibers such as .300, .244, and .275, all based on the same design. In the US, Roy Weatherby modified the H&H cases to develop his Weatherby Magnum family of cartridges. Many were designed to be used with a standard .30-06 rifle action. Roy Weatherby's developments set the pattern for subsequent magnum cartridges Such as the Norma .308 and .358 Magnum, Winchester's 264, .300, .338, and .458 Magnums, and Remington 7mm, 8mm, and .416 Magnums. At the end of the twentieth century, several "super magnum" cartridges were introduced, such as Remington's Ultra Mag, the Short Action Ultra Mag (or SAUM), the Winchester WSM. Many of these newer cartridges lack traditional magnum features such as a belt and large case capacity.
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