Apparatuses for the infeed of cartridges predominantly of two different types of ammunition from conveying devices to a Gatling-type gun or weapon system, can be constructed such that first and second transport devices, a third device and the Gatling-type gun can be simultaneously driven if there are provided storage devices for the intermediate storage of the empty cases during reverse clearing following a firing burst. These storage devices are operatively associated with conveying devices from which the Gatling-type gun has delivered ammunition thereto by the first and second transport devices. The conveying devices, which deliver cartridges from ammunition magazines, can be selectively driven. There is prevented transport of empty cases during reverse clearing by the Gatling-type gun and there is attained the result that the Gatling-type gun is free of empty cases prior to accomplishing a new firing burst. Additionally, it is possible to fire cartridges or ammunition rounds of one type of ammunition from two ammunition magazines without the need to exchange one of the ammunition magazines.