using ball ammo, and M4 and 55 gr 5.56 ball outperforms 30 Carbine and ball, BADLY.
I can't speak for the 62 gr ball loads, aint shot any critters with it (yet) and wouldn't carry much,ifany of it. Might have a magful of it, just for shooting up vehicles, or mixed with tracers, for making a chopper back off.