A Blunderbuss is a large, blackpowder firearm used in the Empire and by other realms of the Known World which make use of similar technology like Grand Cathay. It can be loaded with nails, broken glass, small rocks, or just about anything else on hand, though proper shot is preferred. A blunderbuss requires only a single shot of powder per firing, but it fires four balls at once when loaded with standard shot.[1a]