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303(7.7mmx56R)

303(7.7mmx56R)



.303 British, or 7.7mmx56R, is a .311 inch calibre rifle and machine gun cartridge first developed in Britain in the 1880s as a blackpowder round, later adapted to use cordite and then smokeless powder propellant. It was the standard British and Commonwealth military cartridge from 1889 until the 1950s when it was replaced by the 7.62x51mm NATO.

[ 本帖最後由 MS 於 10-11-2009 01:53 編輯 ]
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