[IronJack]

“The military teaches people to shoot center mast,

I believe the term is "center MASS." That gaffe alone should discredit this reporter.

That aside, are we really going to have to fight this 5.56 vs. 7.62 battle again? It's been going on since the 1960's, and the M16 has proven itself on a variety of battlefields in a gamut of conditions. Is 5.56 the perfect military caliber? Probably not. But that's only because no such thing exists.

[cryptical]

I've heard rumors of a new 6.8mm round being developed as a retrofit for M4 rifles. Change out the barrel, everything else works fine. (The round is basically a necked-up 5.56
casing).