.458 Lott
The .458 Lott is a .458 caliber rifle cartridge designed for the purpose of hunting large, thick-skinned dangerous game animals in Africa. It is based on the full length .375 H&H Magnum case blown out and shortened to 2.800 inches. Wikipedia
Base diameter: .513 in (13.0 mm)
Case capacity: 110 gr H2O (7.1 cm3)
Designed: 1971
Manufacturer: A-Square
Maximum pressure: 62,500 psi (431 MPa)
Parent case: .375 H&H Magnum
Rifling twist: 1-14 in