.38 Short rimfire

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

Key specs

Type: Rimfire
Origin: United States
Case type: rimmed, straight
Bullet diameter: 9.50 mm
Case length: 18.54 mm
Overall length: 30.35 mm
Typical bullet: 150 gr
Typical velocity: 198 m/s
Typical energy: 191 J

Sources

Wikipedia: .38 rimfire, Wikipedia