Remember: Use rifled slugs in smoothbore barrels. Use sabot slugs in rifled barrels. The way to remember that is either the bore OR the slug should be rifled -- never both, always one.

Perhaps you already knew that; I'm not trying to talk down to you or anything. I just don't know what your knowledge level is. If you already knew that, perhaps a newbie will read this and learn something.

When I had a smooth bore on my SuperNova the Remington Slugger Rifles Slugs shot very well in the gun out to 75y.