I didn't vote because I don't think I can weigh in on what is the best as I have only hunted with a Ithaca 37 20ga once. But if I were to seriously hunt with a shotgun, I would want one that was soely dedicated to the slug. As far as I know there was one company that would modify your Remington (870 only I think) by permanently screwing in a rifled barrel into the reciever (Tar Hunt?). The only other comprable thing would be an Ithaca 37 Deerslayer II, and would be my first choice as it looks good, is light weight and has the only free floating barrel on a repeating shotgun that I know of. Also the barrel has EDM rifling which would be smooth and stress-free.