.470 Nitro Express

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Type	Rifle
Place of origin	England
Production history
Designer	Joseph Lang
Designed	1907
Produced	1907–present
Specifications
Parent case	.500 Nitro Express 3+1⁄4 in
Case type	Rimmed, bottlenecked
Bullet diameter	.474 in (12.0 mm)
Land diameter	.467 in (11.9 mm)
Neck diameter	.504 in (12.8 mm)
Shoulder diameter	.531 in (13.5 mm)
Base diameter	.573 in (14.6 mm)
Rim diameter	.655 in (16.6 mm)
Rim thickness	.040 in (1.0 mm)
Case length	3.25 in (83 mm)
Overall length	3.98 in (101 mm)
Case capacity	146.0 gr H2O (9.46 cm3)
Rifling twist	1-20 in
Primer type	Boxer
Maximum pressure	39,160 psi (270.0 MPa)
Maximum CUP	35,000[1] CUP
Ballistic performance
Bullet mass/type Velocity Energy 500 gr (32 g) SP, FMJ 2,150 ft/s (660 m/s) 5,133 ft⋅lbf (6,959 J)
Source(s): "Cartridges of the World"[2]

The .470 Nitro Express is a rifle cartridge developed by Joseph Lang in England for dangerous game hunting in Africa and India. This cartridge is used almost exclusively in double rifles. It is in wide use in the Southern and Central-East African region, favoured by hunting guides, primarily while out for hunting Cape buffalo and elephant.