What Is The Difference Between 5.56 And 5.56 X45?

It should be noted that 5.56 NATO is also known as 5.56 x 45 mm. The 5.56×45 comprises of several cartridges making a general family. The family members of these cartridges contain similar case dimensions. Studies show that there are only a few cartridges that have been selected to participate in NATO. 5.56×45 NATO cartridges, […]