I know that everyone says riffled slugs for smoothbores and sabots for riffled barrels but what would happen if you shot riffled slugs out of a riffled barrel ? would the accuracy decrease a little or would it be way off ? or would the gun gods come down and take my gun away ?

Accuracy would be horrible. And you might damage it.

johnl - Your accuracy would be way off. And yes, the gun gods would come down and take away your gun!

Accuracy for a few shots can be pretty good, BUT, you'll load up your rifling with lead that is a pain to get rid of. No good reason to do it.

Once again UncleNorby is right on the money. My hunting partner insists on shooting Remington sluggers from his rifled barrel. He gets impressive groups out to 80-90 yds,BUT the lead build up in his barrel's rifling is very obvious. I'm afraid he'll one day transform it into a smoothbore. He insists that the lead will come out with some scubbing. To me, that seems like a lot of work, and risks damaging the rifling. His response is that the money he saves using rifled slugs instead of sabots can buy a new barrel. Hard headed, he is.