The first few rounds were way short -- had to do with the targeting software. The combatants on the ground were probably a long way off -- they most likely never heard the chopper, only the cracks of the rounds as they came in supersonic.
Ya ya ya - 20mm on the Cobra -- 25mm on the Bradley -- 30mm on the Apache and Warthog (although the hog uses a much different gun with a lot higher rof)
Ya ya ya - 20mm on the Cobra -- 25mm on the Bradley -- 30mm on the Apache and Warthog (although the hog uses a much different gun with a lot higher rof)