.401 Winchester Self-Loading

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

Key specs

Type: Rifle
Origin: United States
Designer: Winchester Repeating Arms Company
Introduced: 1910
Case type: semi-rimmed, straight
Bullet diameter: 10.33 mm
Case length: 38.10 mm
Overall length: 50.93 mm
Typical bullet: 200 gr
Typical velocity: 653 m/s
Typical energy: 2,762 J

Sources

Wikipedia: .401 Winchester Self-Loading, Wikipedia
Wikipedia: Table of handgun and rifle cartridges, Wikipedia