Firepower: The Army Tested a Helicopter Shotgun with an Amazing 1,200 Barrels

At the touch of a button, a crew member could fire more than a thousand rounds in 10 seconds in a 40-degree arc in front of the helicopter.   While a fixture on the modern battlefield, helicopters are especially vulnerable when hovering low to the ground and dropping off troops. For almost 60 years, the U.S. Army and other services have tried out different weapons to protect choppers as they land and take back off again.