Various guns were used, until a true dueling pistol was officially standardized in 1777, as "a 9 or 10 inch barreled, smooth bore flintlock of 1 inch bore, carrying a ball of 48 to the pound." ...

Under Russian legislation the cartridge is considered as a smooth bore gun ammunition. "Our idea was to create a weapon possessing parameters similar to those of the rifled one, which can be sold ...