.416 Rigby
| .416 Rigby | ||||||||||||||||||||
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| Type | Rifle | |||||||||||||||||||
| Place of origin | England | |||||||||||||||||||
| Production history | ||||||||||||||||||||
| Designer | John Rigby & Company | |||||||||||||||||||
| Designed | 1911 | |||||||||||||||||||
| Produced | 1912–present | |||||||||||||||||||
| Specifications | ||||||||||||||||||||
| Case type | Rimless, bottleneck | |||||||||||||||||||
| Bullet diameter | 10.57 mm (0.416 in) | |||||||||||||||||||
| Neck diameter | 11.33 mm (0.446 in) | |||||||||||||||||||
| Shoulder diameter | 13.72 mm (0.540 in) | |||||||||||||||||||
| Base diameter | 14.96 mm (0.589 in) | |||||||||||||||||||
| Rim diameter | 14.99 mm (0.590 in) | |||||||||||||||||||
| Rim thickness | 1.65 mm (0.065 in) | |||||||||||||||||||
| Case length | 73.66 mm (2.900 in) | |||||||||||||||||||
| Overall length | 95.25 mm (3.750 in) | |||||||||||||||||||
| Case capacity | 8.36 cm3 (129.0 gr H2O) | |||||||||||||||||||
| Rifling twist | 1 in 16.5 in (420 mm) | |||||||||||||||||||
| Primer type | Large rifle magnum | |||||||||||||||||||
| Maximum pressure (C.I.P.) | 325.00 MPa (47,137 psi) | |||||||||||||||||||
| Maximum pressure (SAAMI) | 358.53 MPa (52,000 psi) | |||||||||||||||||||
| Ballistic performance | ||||||||||||||||||||
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| Test barrel length: 610 millimetres (24 in) Source(s): Federal Premium Ammunition | ||||||||||||||||||||
The .416 Rigby / 10.57x73mm is a rifle cartridge designed in 1911 by London based gunmaker John Rigby & Company, for hunting dangerous game. It is the first cartridge to use a bullet of .416 inch (10.57 mm) diameter. The rifles, as built by John Rigby & Co., were initially made up on the Magnum Mauser 98 action (a derivative of the Gewehr 98 bolt-action rifle), although in later years, some were made on standard length actions, a perfect example being the rifle used by legendary professional hunter Harry Selby. Other famous users of the cartridge were Commander David Enderby Blunt, John Taylor, and Jack O'Connor.