Please pardon an ignorant question - can ordinary shotgun barrels have rifling cut into them? I have had a short-barreled Stevens 311 for 30 years which had one box of shells put through it when new and has never been used since - too ugly to even look at, but if it could be made into an accurate slug gun, I might think about it.

If so, who does that sort of work, and how much would it cost?

Thanks.