Huh? wrote:
Did some quick research. The 7.62 nato round is NOT the same as a 308, however, it also is not a 30.06. Long story short, the heavier 30 caliber rounds do travel further. The lighter .223 won't travel as far, but do possess the short range shocking power needed to "down" and enemy charging you.
~~~~ It's the same in as much as the 5.56 is the .223. { Although not identical, the
7.62×51mm NATO and the commercial .308 Winchester cartridges are similar, and even though the Sporting Arms and Ammunition Manufacturers' Institute (SAAMI) considers it safe (by not listing it) to fire the NATO round in weapons chambered for the commercial round, there is significant discussion[by whom?] about compatible chamber and muzzle pressures between the two cartridges based on powder loads and wall thicknesses on the military vs. commercial rounds. The debate goes both ways, the ATF recommends checking the stamping on the barrel; if you're unsure, consult the maker of the firearm}
~~ you will find the same info on the 5.56 /.223 chambered in the ARs . Most mfgrs are tested for presures for the 5.56 and are so stamped , .223 ammo is used as often as not in them