7.65 × 21 mm Mannlicher

The 7.63 mm Mannlicher or 7.65 mm Mannlicher is a centerfire pistol cartridge developed for the Steyr Mannlicher M1901 pistol. This military pistol was rejected by the Austrian Ministry of War, but was often carried as a private weapon by officers. England began manufacturing ammunition when the Mannlicher pistol became popular in South America. Germany began manufacturing ammunition after World War I, but identified the ammunition as 7.65 Mannlicher to differentiate it from the 7.63×25mm Mauser cartridge. This cartridge headspaces on the mouth of the case.[1]

7.65mm Mannlicher
7.63 mm Mannlicher
Place of originAustria-Hungary
Production history
Case typeRimless, straight
Bullet diameter.308 in (7.8 mm)
Neck diameter.331 in (8.4 mm)
Base diameter.332 in (8.4 mm)
Rim diameter.334 in (8.5 mm)
Rim thickness.030 in (0.76 mm)
Case length.84 in (21 mm)
Overall length1.12 in (28 mm)
Rifling twist1 in 10
Primer typeB
Ballistic performance
Bullet mass/type Velocity Energy
85 gr (6 g) FMJ 1,100 ft/s (340 m/s) 227 ft⋅lbf (308 J)
Source(s): "Textbook of Automatic Pistols" [1]

Note: There is also another 7.63/7.65 mm Mannlincher cartridge, 7.63 mm Mannlincher M.1903 / 7.65 mm Mannlincher M.1896, similar to 7.65 mm Borchard while 7.63 mm Mannlincher M.1900 / 7.65 mm Mannlincher M.1901 is a straight-case cartridge. The above diameters do not seem to refer to either of them. 7.63 mm Mannlincher M.1900: bullet dia at case mouth 7.82 mm; rim dia 8.85 mm; case bottom dia 8.85 mm; case mouth external dia 8.45 mm; case length 21.00 mm.

Source: Hykel&Malimanek "NABOJE do rucnich palnych zbrani"


    • Wilson, R. K. Textbook of Automatic Pistols, pp.251-25.3 Plantersville, S.C.: Small Arms Technical Publishing Company, 1943.
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