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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.
.450 Bushmaster.450 Black Powder Express.450/400 Black Powder Express.450/400 Nitro Express.500/450 Magnum Black Powder Express.450 Marlin.450 Nitro Express.500/450 No 1 Black Powder Express.450 No 2 Nitro Express.454 Casull.500/450 Nitro Express.450 Rigby.450 Dakota.450 Watts Magnum.458×2-inch American.458 Express.458 HAM'R.458 Lott.458 SOCOM
Values courtesy of the Hornady Ballistic Calculator [14] For the purposes of this comparison barrel a barrel length of 24 in (610 mm) is used. The .458 Lott is able to attain over 2,300-foot-per-second (700 m/s) with a 500-grain (32 g) jacketed bullet at safe pressure levels from a 23–24-inch (580–610 mm) barrel.
The maximum point blank range (MPBR) for the 450-grain (29 g) Weatherby load is 258-yard (236 m). The 500-grain (32 g) Weatherby factory ammunition has a maximum point blank range of 245-yard (224 m). These trajectories compare well with those of the .375 H&H Magnum. At 200 yd (180 m) Hornady's Interlock .375 H&H Magnum's 270 gr (17 g) bullet ...
In African rifles and cartridges Taylor compares the effect of a near miss of an elephant's brain from a frontal head shot with the .416 Rigby and the .470 Nitro Express, two cartridges with similar muzzle energy but different bullet weights. Taylor states that the .416 Rigby will probably not knock the elephant out, but momentarily stun the ...
.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 ...
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 ...
The .450/400 Nitro Express is a Nitro Express rifle cartridge that is produced in three case lengths: 2 3 ⁄ 8-inches, 3 inches and 3 1 ⁄ 4-inches, [2] and is intended for use in single shot and double rifles. The 3-inch and 3 1 ⁄ 4-inch versions are considered classic Nitro Express cartridges.