Closer ranges are more common, even for snipers.
Most combat engagments are less than 100m.
Nobody wants to clear a room with an M14.
My post said "some".
Agreed, the M14 is too big for close quater combat, etc.
BTW, I trained with the M14 in basic training, then the M16 in AIT.
True. But nobody can shoot through walls with M16A2/M855 ball, either.
May I suggest writing the bad guys obits with a Chicago typewriter?