.303/22

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

Key specs

Type: Rifle
Origin: Australia
Case type: rimmed, bottleneck
Bullet diameter: 5.69 mm
Case length: 55.50 mm
Overall length: 71.12 mm
Typical bullet: 45 gr
Typical velocity: 1,067 m/s
Typical energy: 1,660 J
Parent case: .303 British

Sources

Wikipedia: .303/22, Wikipedia