Modular artillery charge system

A modular artillery charge system consists of two distinct solid propellant charge modules. Each module consists of a three-piece combustible cartridge case design and bi-directional center core core ignition system. The three-piece combustible cartridge case consists of a combustible case body, having an open end and a end; a cap, having a closed end and an open end; and a center tube. The closed ends of the body and the cap have a hole in the center. The center core tube is positioned longitudinally through the combustible case body, and contacts the closed ends of both the cap and the body. The bi-directional center core ignition system comprises a core igniter bag and two end igniter bags. The core igniter bag occupies the center core tube, and the end igniter bags contact the core igniter bag. The bi-directional center core ignition system may be ignited by percussion primers or a laser ignition system. The first module is used individually or in groups of two. The second module is used in groups of three or more. The modules are not used with one another. The modules are distinguishable by color and by shape, so that the modules may be distinguished even under conditions of complete darkness. Each module has a coating applied to the exterior of the case, and mylar seals over the ends, to provide protection to and from the environment.