The blunderbuss is a 17th- to mid-19th-century firearm with a short, large caliber barrel which is commonly flared at the muzzle, to help aid in the loading of shot and other projectiles of relevant quantity or caliber.[clarification needed] The blunderbuss is commonly considered to be an early predecessor of the modern shotgun, with similar military usage.[2] It was effective only at short range, lacking accuracy at long distances. A blunderbuss in handgun form was called a dragon, and it is from this that the term dragoon evolved.[3][4]