I was at Ft. Riley for a week while in HS ROTC.  Nothing memorable about the fort except we got to shoot and qualify with just about every infantry weapon in the US Army at the time.  M-1, M-1 Carbine, M-2 Carbine (full auto baby), M-14, B.A.R. (the Beast) and .30 Cal. Machine Gun.  The target for the .30 Cal was only about 30 yards away but my takeaway was you don't fire a machine gun for accuracy, it's to let the enemy know you have one.  Couldn't hit shit with it while qualifying with everything else. Good times.