An early form of revolving repeating pistol in which a number of barrels were bored in a circle in a single piece of metal resembling the cylinder of a modern revolver. Functioning was the same as a revolver, the entire cylinder being revolved to bring successive barrels under the hammer for firing. Though occurring as far back as the 16th century, the pepperbox did not become practical until the advent of the percussion cap in the early 1800's. Pepperboxes were made in a wide variety of sizes and styles, and reached their popularity peak during the percussion period. Few were made after the advent of practical metallic cartridges. Both single- and double-action pepperboxes were made. Single barreled revolvers after the 1 840s were more accurate and easier to handle and soon displaced the rather clumsy and muzzle heavy pepperbox.