The Firing Line Forums - View Single Post - isnt 5.56 the metric conversion of the us measurement .223

B.L.E. · June 14, 2011, 06:08 AM

Caliber comes from the Arabian word for (bullet) mold.

June 14, 2011, 06:08 AM	#14
B.L.E. Senior Member Join Date: December 20, 2008 Location: Somewhere on the Southern shore of Lake Travis, TX Posts: 2,603	Caliber comes from the Arabian word for (bullet) mold.