10.6×25mmR

The 10.6x25mmR German Ordnance cartridge, also called the 10.6mm Reichsrevolver, the 10.6mm Service Ordnance, or the 10.55mm German cartridge, is a pistol cartridge designed by the then newly formed German Empire for their first two official service revolvers the M1879 & M1883 Reichsrevolvers. It is believed to have been influenced by, or developed from the .44 Russian cartridge, which had been developed by the American firearms manufacturer Smith & Wesson for the Armies of Imperial Russia.

10.6×25mmR German Ordnance
TypePistol
Place of originGerman Empire
Service history
In service1879-1945
Used byGerman Empire
WarsGerman Colonial Conflicts, Boxer Rebellion, World War I, World War II
Production history
DesignedExact date of development is uncertain. Sometime between German unification (following the Franco-Prussian War of 1870–71), and formal adoption of the Reichsrevolver in 1879.
Specifications
Parent caseBelieved to be a development of the .44 Russian
Case typeRimmed, straight case
Bullet diameter10.92 mm (0.430 in)
Shoulder diameter11.5 mm (0.45 in)
Base diameter11.53 mm (0.454 in)
Rim diameter12.94 mm (0.509 in)
Case length24.64 mm (0.970 in)
Overall length36.82 mm (1.450 in)
Ballistic performance
Bullet mass/type Velocity Energy
262 gr (17 g) LRN 705 ft/s (215 m/s) 298 ft⋅lbf (404 J)
Source(s): "Cartridges of the World"

When they were adopted by Imperial Germany, both the 10.6x25mmR German Ordnance cartridge and the Reichsrevolver had already been surpassed by more advanced developments already in use by other nations and empires of Europe and the Americas. The 10.6x25mm German Ordnance cartridge would be slowly phased out and replaced in German service by the modern 9x19mm Parabellum round with the adoption of the Pistole Parabellum 1908 (more commonly called the Luger pistol) in 1908, and would be used alongside its successor, the 9x19mm Parabellum, in World War I, and would see minimal use through the period of World War II, before finally being completely phased out.[1][2]

References
  1. C&Rsenal on YouTube "Small Arms of WWI Primer 006: German Reichsrevolver M1879 Revolver" . Accessed August 4, 2016.
  2. "Pistol, Revolver, and SMG Rounds". pmulcahy.com. Retrieved November 11, 2016.


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