I have a 870 super mag that i use to hunt everything(deer,coyote,bowling pins). Here in lower Michigan it is a shotgun only area. So my question is what would be better? A riffled choke tube or just a riffled slug through the smooth bore? I really dont want to spend the cash on a riffled barrel i have no problem bagging dear now. And also i should be using a improved cylinder choke for the riffled slugs?