i have taken a deer with my rem 1100 with a 21" rifled barrel using remington copper solids. i have also taken deer with the old foster type slugs. i find they both shoot fine out of the rifled barrel using iron sights. if your shots will be over 100yds use the sabots. anything under that go with foster type. one reason being.. that they are cheaper than these coper soids and other sabot' s.