8 x 56 mmR
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The 8x56R cartridge was used by Austria-Hungary. Originally created for the Steyr-Solothurn light machine gun as the M30, it was later adopted for use in rifles in 1931 as the M31 to replace the 8 x 50 mmR cartridge. This ammunition was made at a variety of plants as well as countries, including Austria, Germany, Bulgaria and Czechoslovakia.
[edit] Specifications
Bullet Diameter .329 Case Neck Diameter .365 Case Shoulder Diameter .473 Case Base Diameter .491 Case Rim Diameter .554 Case Rim Thickness .060 Case Length 2.20 Overall Cartridge Length 3.02 Military Bullet Weight 206 Velocity 2300
[edit] References
http://www.surplusrifle.com/steyrm95/ammunition.asp
