The Firing Line Forums - View Single Post - curious as to the following. anyone know?

alan · March 5, 2005, 01:09 AM

U.S. caliber 30 ammunition uses a jacketed bullet of .308-.309" in diameter, mostly .308" also known as 7.62mm.

Russian ammunition, 7.62 x whatever, say x 39, as well as their old 7.62 x 54R uses a jacketed bullet of .311" dia. or so. How come?

Anyone know?

March 5, 2005, 01:09 AM	#1
alan Senior Member Join Date: June 7, 1999 Posts: 3,847	curious as to the following. anyone know? U.S. caliber 30 ammunition uses a jacketed bullet of .308-.309" in diameter, mostly .308" also known as 7.62mm. Russian ammunition, 7.62 x whatever, say x 39, as well as their old 7.62 x 54R uses a jacketed bullet of .311" dia. or so. How come? Anyone know?