Section 4.
1Any smooth-bore gun.
2Any rifle having a calibre of less than .240 inches or a muzzle energy of less than 2,305 joules (1,700 foot pounds).
3Any air gun, air rifle or air pistol.
4Any cartridge for use in a smooth-bore gun.
5Any bullet for use in a rifle other than a soft-nosed or hollow-nosed bullet.