Abstract: Device for feeding ammunition to an aircraft firing gun, without using belts includes an ammunition container having a plurality of partitions to establish a plurality of different levels; a pair of endless chains being interconnected and run over at least one drive wheel and a plurality of deflection and buffer wheels for running the endless chains of the pair in two loops through all of the said levels of the plurality of levels; the deflection wheels being secured to each other for common movement such that as one loop increase the other one decreases; a normally biased spring releases on firing and acts on one of the loops to obtain full feeder movement during start-up of a booster motor, thereby forcing one loop to increase the other one to decrease.