Co2 is much safer than black powder. Yeah, it doesn't give off the smoke, but as a fireing system, it will make it so the thing can fire multiple shots. Using black powder would either require that you pack it yourself for each individual shot or you design an overly complex feeding mechanism for the powder. Black powder would give the realistic smokey look that Co2 doesn't have, but like I said, it would be a lot of work to make function properly.
|