HISTORICAL NOTES
Originated by the British firm Holland & Holland in 1912, this is one of the original belted, rimless, magnum-type cartridges. It has been used as the basis for numerous wildcats and most of the Weatherby cartridges. Holland & Holland furnished it in a magnum Mauser action, and Griffin & Howe chambered rifles for it, beginning about 1926. The Western Cartridge Co. first offered it in 1925.
At present, Federal, Remington and Winchester load the .375, in addition to a few others. The first commercial rifle of American make to chamber the round was the Model 70 Winchester, in 1937. Weatherby rifles were at one time available in .375 H&H, as was the Remington Model 725 Kodiak. At present, several American manufacturers list the .375 H&H as standard including…