Handguns, other than muzzleloading, must have a barrel at least 4 inches long and must fire a bullet of .243-inch diameter or larger. The handgun cartridge case, without the bullet, must be at least 1.16 inches long. Full metal-jacketed bullets are not permitted. The handgun must not be a rifle that has a barrel less than 18 inches or be designed or redesigned to be fired from the shoulder