I charge that the federal government, in cooperation with the big cities (which are really just little communist city-states), is really cranking up the fear factor on guns, in an attempt to pass registration/confiscation.
Notice that he had about 6,000 rounds of ammo. Who can carry 6,000 rounds of 12-gauge? The 6,000 number must be focus-group tested for maximum fear factor and simultaneous credence.
It is really not much ammo.