RE: Can I shoot slugs for a smooth bore barrel?
If you do shoot them from your smooth barrel, get a cylinder choke, if you don't, your choke will be smaller than the barrel (duh) then the bullet will be shaped to the barrel, and try to squish down to fit your choke, deforming your bullet A LOT!!!, it'll also kick your arm off, you need a choke that won't constrict the slug as it leaves the muzzle, find that one, and you shouldn't have any trouble getting good groups out to 75 yrds at least, my J.C. Higgins will give me 2" at 100 with rifled slugs in a smooth bore, I can't imagine what it'd do if I rifled it!!