An ammunition handling system is provided which comprises a support for supporting a plurality of projectile tubes adapted to house projectiles, guide means on the support for guiding the projectile tubes along a predetermined path, and drive means for driving the projectile tubes along the path, wherein the projectile tubes are juxtaposed close enough together so that when in movement along the path, they are capable of pushing each other along the path. Thus, the projectile tubes can be driven along the path upon application of a sufficient force without the need for any connecting chain or belt.