Top definition
A rifle cartridge developed in 1891 for the Mosin Nagant. Still in use around the world today. Packs between 3600 and 3900 J of kinetic energy. In comparison, .22 Long packs between 150 and 250 J.
The Mosin-Nagant, which uses a 7.62x54r cartridge, has been used since the Russo-Japanese War and is still being used in Afganistan today.
by Secruss December 09, 2010
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