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The .450 Rigby is a rifle cartridge designed in 1994 by John Rigby & Co. for the purpose of hunting large, thick-skinned dangerous African game animals. The cartridge is essentially a .416 Rigby necked up to accept a .458 in (11.6 mm) bullet, although with a higher operating pressure and much of the original taper removed.
Ballistically the .500/450 Nitro Express is almost identical to the .450 Nitro Express and is considered a good large-bore round, suitable for all dangerous game. One prominent user of the .500/450 Nitro Express was Theodore Roosevelt who carried a Holland & Holland double rifle in this calibre, along with a .405 Winchester and a .30-03 during ...
.450 Nitro Express also known as the .450 Nitro Express 3 1 ⁄ 4-inch is a rifle cartridge designed for hunting dangerous game such as elephant, rhino, cape buffalo, lion, and leopard. This cartridge is used almost exclusively in double rifles for hunting in the tropics or hot climates in general and is associated with the Golden Age of ...
John Rigby & Company (or John Rigby & Co. (Gunmakers) Ltd) is a gunmaking firm founded by John Rigby in 1775 in Dublin. The company was established by the first John Rigby in Dublin , Ireland , apparently in 1775; his grandson, also John, opened a London branch in 1865; and Dublin operations had ceased by February 1897.
Rigby was a world-class rifle marksman, forming the Irish team for the NRA's Imperial Meeting at Wimbledon (later Bisley) for twenty-eight years. [ 2 ] In 1887, [ 3 ] he became superintendent of the Royal Small Arms Factory at Enfield Lock , where he oversaw development of the British service-issue .303 British calibre rifle.
Pages in category "John Rigby & Co cartridges" ... .416 Rigby.450 Nitro Express.450 Rigby This page was last edited on 30 January 2018, at 11:57 (UTC). ...
The .450 Bushmaster is descended from the Thumper concept popularized by the gun writer Jeff Cooper.Cooper was dissatisfied with the small-diameter 5.56×45mm NATO (.223 Remington) of the AR-15, and envisioned a need for a large bore (.44 cal or greater) cartridge in a semi-automatic rifle to provide one-shot kills on big-game animals at 250 yards.
By way of comparison, the .416 Rigby and .416 Remington Magnum cartridges fire .416 in (10.57 mm) bullets of 400 gr (26 g) at 2,400 feet per second (730 m/s) with a muzzle energy of approximately 5,000 foot-pounds force (6,800 N⋅m). These cartridges exceed the ballistic performance of the .404 Jeffery but at the price of greater recoil and ...