6.5×53mmR

6.5×53mmR
Comparance of .256 Mannlicher with .303 British (rightmost)
Type	Military rifle cartridge[1]
Place of origin	Austria-Hungary[1]
Service history
In service	1893-1945
Used by	Netherlands[2] Romania[3]
Wars	World War I[3] World War II[2]
Production history
Designed	1892[3]
Specifications
Case type	Rimmed, bottleneck[4]
Bullet diameter	6.5 mm (0.26 in)
Neck diameter	7.55 mm (0.297 in)
Shoulder diameter	10.75 mm (0.423 in)
Base diameter	11.48 mm (0.452 in)
Rim diameter	13.4 mm (0.53 in)
Rim thickness	1.25 mm (0.049 in)
Case length	53 mm (2.1 in)
Ballistic performance
Bullet weight/type Velocity Energy 159 gr (10 g) RN 2,433 ft/s (742 m/s) 2,050 ft·lbf (2,780 J)
Source(s): Rifles and Machine Guns[4] .256 Mannlicher / 6.5x53R Reloading Data[5]

The 6.5×53mmR or .256 Mannlicher is a late 19th-century rimmed centerfire military rifle cartridge similar to other early smokeless powder designs. It was the first of a series of 6.5 millimetres (0.26 in) Mannlicher cartridges^[1] and became the standard Romanian service rifle cartridge from 1893 to 1938,^[3] and the standard Netherlands service rifle cartridge from 1895 to 1945.^[2]

References

1. ↑ 1.0 1.1 1.2 "A Mannlicher Introduction". Mannlicher Collectors Association. Retrieved 29 November 2013. 
2. ↑ 2.0 2.1 2.2 Reynolds, Dan. "Reissued Rifles of "The East Asia Co-Prosperity Sphere"". Retrieved 29 November 2013. 
3. ↑ 3.0 3.1 3.2 3.3 Reynolds, Dan. "The Rifles of Romania 1878-1948". Carbines for Collectors. Retrieved 29 November 2013. 
4. ↑ 4.0 4.1 Johnson, Melvin M., Jr. (1944). Rifles and Machine Guns. New York: William Morrow & Company. p. 384. 
5. ↑ ".256 Mannlicher / 6.5x53R Reloading Data". Load Data. Retrieved 29 November 2013.