; (3) in subsection (e)— (A) by striking a pistol or revolver having a barrel with a smooth bore designed or redesigned to fire a fixed shotgun shell, ; and (B) by striking having a rifled bore, or rifled bores ; and (4) in subsection (f), by striking except a shotgun or shotgun shell which the Secretary finds is generally recognized as particularly suitable for sporting purposes and inserting other than a shotgun, a shotgun shell, or a firearm excluded from the definition of the term ‘shotgun’ under subsection (d) . (c) Effective date The amendments made by this section shall take effect on the date of enactment of this Act.