Ok...This is what I know about shotgun slugs so far..If someone can add to this please feel free to educate me....Shoot sabot slugs from a rifled shotgun barrel only,,shooting regular cheap slugs could damage the shotgun and possiblly cause injury (high pressure).......The original non-saboted cheap slugs are to be used in standard shotguns with modified or improved cylinder chokes only...Full choke barrels should not fire slugs at all.......They also have rifled slugs..These are NOT sabot slugs and are to be used in non-rifled barrels only.....Hopefully this is correct....