Abstract: An ammunition magazine for a combat vehicle, wherein the shells are stowed upright and perpendicular to the floor and when they are removed automatically by an ammunition positioner that has an arm with a pivoting pickup at its end, with several magazine shafts, wherein the shells are stowed with their base against a base plate and secured by a shell holder. The shell holder has at least two pairs of tongs-like shell-securing arms that at least partly surround the jacket of the shell, one side of which rests against a stationary guide, on the opposite side, that pivot one above another toward the longitudinal axis of the magazine shaft and, closing subject to a resilient force, around another axis that parallels the first outside the magazine shaft, and that, when closed, can be locked closed by a mechanism that can be unlocked by a component on the positioning arm that activates an unlocking mechanism when the shell is grasped as the automatic pickup removes it.