Our team uses 37mm less lethal launchers. Training on these weapons gets pretty expensive as the rounds cost $25.00 each. We found a way to reload using a cut down .44mag shell with 9 grains of black powder, the problem is black powder is so corrosive. We are looking for load data using smokeless powder to cut down on the amount of cleaning. Does anyone have any experience or load data for reloading these type of rounds?