.22 BB

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

Key specs

Type: Rimfire
Origin: France
Designer: Louis-Nicolas Flobert
Introduced: 1845
Case type: rimmed, straight
Bullet diameter: 5.66 mm
Case length: 7.21 mm
Overall length: 8.71 mm
Typical bullet: 20 gr
Typical velocity: 238 m/s
Typical energy: 35 J

Cartridges based on it 2

.17 Munisalva .22 CB

Sources

Wikipedia: .22 BB, Wikipedia