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

GoOfY-FoOt · June 13, 2011, 05:57 PM

The biggest difference between them is on the inside.
From what I understand, the 5.56 has a smaller powder chamber inside the brass, creating higher pressures. Hence the designation. A 5.56 shot through a .223 designated gun, might cause interesting things to happen.
That's the way it was explained to me.

June 13, 2011, 05:57 PM	#5
GoOfY-FoOt Senior Member Join Date: January 1, 2011 Location: West Central Florida Posts: 463	The biggest difference between them is on the inside. From what I understand, the 5.56 has a smaller powder chamber inside the brass, creating higher pressures. Hence the designation. A 5.56 shot through a .223 designated gun, might cause interesting things to happen. That's the way it was explained to me. __________________ BILL @ Strongside Arms, Inc. - 1479 W. C-48 Bushnell, FL 33513 352-568-0017 -------------------------------------------------- “Why worry when you can pray? He [God] is the Whole, you are a part. Coordinate your abilities with the Whole.” ~Edgar Cayce~