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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
Common rifle cartridges, from the largest .50 BMG to the smallest .22 Long Rifle with a $1 United States dollar bill in the background as a reference point. This is a table of selected pistol/submachine gun and rifle/machine gun cartridges by common name. Data values are the highest found for the cartridge, and might not occur in the same load ...
Historically, this table has been referred to as a "drop table." The drop table can be generated empirically using data taken by the shooter at a rifle range; calculated using a ballistic simulator; or is provided by the rifle/cartridge manufacturer. The drop values are measured or calculated assuming the rifle has been zeroed at a specific range.
.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 ...
Whilst Eley developed the completely new, mammoth .450 No 2 Nitro Express, Holland & Holland followed Rigby's example and loaded the old black powder.500/450 Magnum Black Powder Express with cordite, creating the .500/450 Nitro Express. The larger case capacity allowed the same ballistics at reduced chamber pressures to the .450 Nitro Express.
The .460 Weatherby Magnum, like the .375 H&H Magnum, is a relatively flat shooting cartridge. 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).
The .338 Lapua Magnum case by itself has been based on the .416 Rigby. The .460 Weatherby Magnum has a case head diameter (0.580"/ 14,73mm) unique to the large Weatherby belted magnum cases. Few other cartridges use this case head size (or something close, like the .416 Rigby).