.22 Spitfire

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

Key specs

Type: Rifle
Origin: United States
Designer: Melvin M. Johnson
Introduced: 1963
Bullet diameter: 5.69 mm
Case length: 32.77 mm
Overall length: 41.91 mm
Typical bullet: 40 gr
Typical velocity: 869 m/s
Typical energy: 976 J
Parent case: .30 Carbine

Sources

Wikipedia: .22 Spitfire, Wikipedia