I have started hunting in a shotgun only zone in New York. Last year I used my muzzleloader, but would like to use a shotgun this year. Here is my question:

Should I get a cantelevered rifled barrel for my Rem 870 (which is also my turkey gun) or look at a totally new gun? The barrel is in the $225 range. I know I have seem 870 Express and Mossberg "Deer Slayer" shotguns under $300. Any experience with accuracy on either scenario?

Thanks, Rob