One of the problems we had with the AC-130U 25mm gun was the inertia of the ammo. The gun cycled so quickly that when the trigger was released about 6 rounds would continue past the breach because it was hard to stop all those rounds when you get them moving. The feed system actually reversed to recover those unfired rounds. Getting this feature to function was a big pain during development. To everyone preparing the plane down to the pilot thank you for your service. You all are the life blood of the military