Winchester single-shot express cartridge. High-velocity black powder load for large game. Used in the Winchester Single Shot (Model 1885).
Type: Rifle
Introduced: 1885, United States
Parent case: None
Standardization: None
Bullet diameter: 0.403" (10.2362 mm)
Case length: 3.25" (82.55 mm)
Overall length: 4" (101.6 mm)
Max pressure: 22,000 PSI
Rim type: Rimmed
Primer: Large Rifle
Typical twist rate: 1:18
Muzzle velocity: 1500–1600 fps
Muzzle energy: 1299–1477 ft-lbs
Effective range: 300 yd
Common bullet weights: 260 gr
Primary use: hunting
Production status: Obsolete
Also known as: 40-110 Winchester Express · .40-110 WE
History: Winchester's most powerful Winchester Express cartridge for the Model 1886 lever-action. Designed for very large North American game including moose and bison in the late 19th century. Fires heavy bullets at modest velocity with substantial energy. Obsolete after the .45-70 government and newer designs took over.