A. Discharge: No person shall discharge any gun or pistol within the city, except in a duly licensed shooting gallery and against a lawful breastwork, or in case of necessary defense of self, family or property or in case of any civil officer in the discharge of his duty.
B. Breastwork Or Battery For Target Shooting: A breastwork or battery for target shooting, to be deemed lawful, shall be a wall sixteen inches (16") thick, six feet (6') high in the back, six feet (6') wide, with side wings one foot (1') thick, six feet (6') high in back, six (6) flaringly to the front, and six feet (6') high of adobes, brick or any equivalent thereto of any other material. (Prior code § 15-33)