Any person over the age of 12 years who, with or without malice, purposely points or aims any loaded or empty pistol, gun, revolver or other firearm, at or toward any other person within range of the firearm, except in self-defense, shall be fined upon conviction in any sum not less than $10 nor more than $500, or be imprisoned in the county jail not less than 10 days nor more than six months, or both. Justice courts have jurisdiction concurrent with the circuit court of the trial of violations of this section. When any person is charged before a justice court with violation of this section, the court shall, upon motion of the district attorney, at any time before trial, act as a committing magistrate, and if probable cause be established, hold such person to the grand jury. [Formerly 163.320]