For the purpose of this article, a “firearm” means any device designed, made or adapted to expel a projectile through a barrel by using the energy generated by an explosion or burning substance or any device readily convertible to that use.
(Ordinance adopting Code)
It is unlawful for any person to discharge a firearm for the purpose of discharging a shell, missile or cartridge, whether the shell, missile or cartridge is blank or live ammunition, within the corporate limits of the city.
(Ordinance adopting Code)
It is a defense to prosecution under this article that:
(1) 
The person was a peace officer acting in the performance of his official duties;
(2) 
The person was at a shooting range operated by an agency of the United States of America, the state or a political subdivision of the state;
(3) 
The person was at a privately owned shooting range which had been approved by the building official and the fire marshal, and which was legally operating as a permitted use in accordance with the zoning ordinances of the city;
(4) 
The person was using blank cartridges for a show or theatrical production, or for signal or ceremonial purposes in athletics or sporting events, or by a military organization; or
(5) 
The person was lawfully defending his person, the person of another, or his property.
(Ordinance adopting Code)
Any person found to be in violation of this article shall be guilty of a misdemeanor and shall be punished by a fine in accordance with the general penalty provision found in section 1.01.009 of this code.
(Ordinance adopting Code)