.577/500 Nitro Express

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

Key specs

Type: Rifle
Origin: United Kingdom
Case type: rimmed, bottleneck
Bullet diameter: 12.90 mm
Case length: 79.50 mm
Overall length: 95.00 mm
Typical bullet: 440 gr
Typical velocity: 526 m/s
Typical energy: 3,959 J

Sources

Wikipedia: .577/500 Nitro Express, Wikipedia