An explosive cartridge for receiving an explosive material when being arranged in a borehole, wherein the explosive cartridge comprises a supply body having a supply channel through which the explosive material is supplyable from outside of the borehole, and a flexible tube being slid over an outer surface of the supply body in a longitudinally compressed manner and being configured so that, when the explosive material is supplied under pressure from outside of the borehole through the supply channel and fills an inner volume of the flexible tube, the flexible tube is longitudinally decompressed and slides off from the supply body to proceed towards an interior of the borehole.