.56-56 Spencer

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

Key specs

Type: Rimfire
Origin: United States
Designer: Christopher Spencer
Case type: rimmed, straight
Bullet diameter: 13.97 mm
Case length: 22.23 mm
Overall length: 39.24 mm
Typical bullet: 350 gr
Typical velocity: 366 m/s
Typical energy: 1,525 J

Weapons chambered for it 1

RiflesSpencer repeating rifle.56-56 SpencerUnited States · 1860

Sources

Wikipedia: .56-56 Spencer, Wikipedia