The 11 mm M1873 ammunition

Ammunition

Ammunition is a generic term derived from the French language la munition which embraced all material used for war , but which in time came to refer specifically to gunpowder and artillery. The collective term for all types of ammunition is munitions...

 round intended for the 11 mm MAS 1873-1874 revolver

MAS 1873 revolver

The service revolver model 1873 Chamelot-Delvigne was the first double action revolver used by the French army. It was produced by Manufacture d'armes de Saint-Étienne from 1873 to 1887 in about 337,000 copies. Although soon replaced by the Modele 1892 revolver, it was nevertheless widely used...

 was in service with the French Army. Its case is rimmed and is loaded with black powder. The velocity and power of the first variant, equivalent to the 6.35 mm

.25 ACP

The .25 ACP centerfire pistol cartridge is a semi-rimmed, straight-walled pistol cartridge introduced by John Browning in 1905 alongside the Fabrique Nationale model 1905 pistol...

, was weak for its time (92 joules). The second variant, 1873–90, corresponded in power to the 7.65mm (230 joules).

Dimensions

• Projectile diameter: 11.6 mm
• Case length: 17 mm
• revolver length: 245 mm
• barrel length: 114 mm

Cartridges used

• Model 1873 (11.7 g lead bullet and 0.65 g powder charge)
• Model 1873/90 (10.6 g pointed lead bullet and 0.80 g powder charge)
• Model 1890/1900 blank (0.4 g paper dummy bullet and 1.10 g powder charge)

Ballistics

• Muzzle velocity (Vo):
  • M1873 cartridge: 130 m/s
  • M1873-90 cartridge: 190 m/s
• Muzzle energy (Eo):
  • M1873 cartridge: 98.1 joules
  • M1873-90 cartridge: 196.2 joules