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6.5 × 50SRmm

6.5 × 50SRmm

Region

Sweden
Sweden

Category

Ammunition, Missiles and precision weapons
Ammunition, Missiles and precision weapons

The 6.5 × 50SRmm is unlike other 6.5 mm cartridges of similar vintage, the Arisaka used a semi-rimmed, bottlenecked brass case and it is the shortest of the class. The original bullet was a jacketed round-nose pattern, subsequently replaced by a non-streamlined pointed type. Japanese cartridges bore no headstamp; Chinese ammunition has the usual Chinese Communist pattern headstamp, whilst commercially made ammunition carries the usual commercial types of marking. First issued in 1897 this remained the standard

Japanese rifle and machine gun round until after 1945. After the war many thousands of Japanese rifles and machine guns were taken by the Chinese, and ammunition was made in China until the 1950s. Many were also brought back to the USA as war souvenirs by returning servicemen and some are still in use in North America. Many more weapons were distributed around Asia and this cartridge will doubtless be encountered for some time to come. Applications include japanese Arisaka rifles and carbines, Japanese machine guns pre-1945.
Tech Specs
Round length75.7 mm
Case length50.8 mm
Rim diameter12.14 mm
Bullet diameter6.65 mm
Bullet weight9 g
Muzzle velocity720 m/s
Muzzle energy2,333 J
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