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7.65mm Mannlicher 7.63 mm Mannlicher
Type	Pistol
Place of origin	Austria-Hungary
Production history
Designed	1901
Specifications
Case type	Rimless, 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 length	1.12 in (28 mm)
Rifling twist	1 in 10
Primer type	B
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 Note: There is also another 7.63/7.65 mm Mannlicher cartridge, 7.63 mm Mannlicher M.1903 / 7.65 mm Mannlicher M.1896, similar to 7.65 mm Borchardt while 7.63 mm Mannlicher M.1900 / 7.65 mm Mannlicher M.1901 is a straight-case cartridge. The above diameters do not seem to refer to either of them. 7.63 mm Mannlicher 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.

The 7.63 mm Mannlicher or 7.65 mm Mannlicher is a centerfire rimless 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. The United Kingdom 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.

References

1. ^ Wilson, R. K. (1943). Textbook of Automatic Pistols. Plantersville, South Carolina: Small Arms Technical Publishing Company. pp. 251–253.
2. Hýkel, Jindřich; Malimánek, Václav (2002). Náboje do ručních palných zbraní (in Czech). Naše vojsko. ISBN 978-80-206-0641-9.

• Pistol and rifle cartridges