.50 BMG Minigun [video]

General Dynamics Armament and Technical Products has introduced a 3 barreled .50 Caliber Gatling Gun capable of firing 1,300 shots per minute.  That would be over 975,000 grains (140 pounds) of lead and at $5 per round cost $6,500 per 60 seconds.  I give you the GAU-19/B: