.458×2-inch American

Photo coming soon: side view on a transparent background, with author and license.

Key specs

Type: Rifle
Origin: United States
Designer: Frank Barnes
Introduced: 1962
Case type: belted, straight
Bullet diameter: 11.63 mm
Case length: 50.80 mm
Parent case: .458 Winchester Magnum

Cartridges based on it 1

Sources

Wikipedia: .458×2-inch American, Wikipedia