.400 Whelen

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

Key specs

Type: Rifle
Origin: United States
Designer: Townsend Whelen
Typical bullet: 300 gr
Typical velocity: 701 m/s
Typical energy: 4,775 J
Parent case: .30-06 Springfield

Sources

Wikipedia: .400 Whelen, Wikipedia