Obscure American single-shot target cartridge. Very limited historical documentation.
Type: Rifle
Introduced: 1890, United States
Parent case: None
Standardization: None
Bullet diameter: 0.379" (9.63 mm)
Case length: 1.88" (47.75 mm)
Max pressure: 18,000 PSI
Rim type: Rimmed
Primer: Large Rifle
Typical twist rate: 1:16
Muzzle velocity: 1100–1300 fps
Muzzle energy: 537–938 ft-lbs
Effective range: 200 yd
Common bullet weights: 200, 250 gr
Primary use: target
Production status: Obsolete
Also known as: 38 Holden
History: A Victorian-era British revolver cartridge of uncertain origin, used in European pocket revolvers. The .38 Holden designation identifies it with a specific British gunmaker. Low-velocity lead bullet appropriate to the black powder era. Completely obsolete.