.475 No 2 Jeffery

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

Key specs

Type: Rifle
Designer: W. J. Jeffery & Co.
Introduced: 1906
Bullet diameter: 12.42 mm
Typical bullet: 500 gr
Typical velocity: 646 m/s
Typical energy: 6,779 J

Sources

Wikipedia: .475 No 2 Nitro Express, Wikipedia