Model 1842 Percussion Musket (rifled)

About 250,000 Model 1842 Springfield single-shot muzzleloading smoothbores were made before 1856, at which time the US Army began rifling some of them. About 14,000 were converted by 1859. The .69 caliber rifle was found to be less accurate than the new .58 caliber rifles, however, and further rifling was halted.

At least 1 Federal regiment, the 81st Pennsylvania, used this weapon.

.69 ball/conical

Maximum: 500 yards; Effective: 300 yards

Overall: 58 inches; Barrel: 42 inches

Specifications from the Springfield Armory NHS.