[Markost]

As Nyles said, the 308 is a good cartridge, but it´s heavy and you can´t carry much ammo. Anyway, our army won´t change this cardtrige because there´s no money for buying new rifles or ammo machines for make the 5,56.

But seriously, before changing caliber I´d change the WWII M1 helmets and other old stuff that is still in use.