.223 VS 5.56 Is There a Difference? Here we go again!
In this video I go into more specifics on the differences between .223 and 5.56.and why they are not same round. This video is a part 2 to the original video posted on this topic. http://www.6mmbr.com/223Rem.html http://www.thegunzone.com/556v223.html