>5.56 is better than 308 because
you dont need to waste 6 gorilion rounds to kill someone
gym exist for a reason
>an intermediate cartdrige does more damage than a .308 because it breaks on impact
.308 dum dum ammo exist
>manuverability and body armor
literaly just use an smg while aiming at the head in that case.
and a .308 will put down someone with body armor with 1 hit after seconds.
intermediate cartdriges are for manlets and women.