Joelb, you won't need a rifled barrel for your shotgun in order to shoot reliably out to 50-75 yards, depending on how much practice you can get in before you go out into the field. Just make sure that you have your modified or improved cylinder choke in. I would recommend brenneke's KO slugs or winchester super-x (but check to see which ones work well in your gun. I personally don't trust buckshot because it's poor accuracy and penetration will really limit your range. Good luck and make that out of state tag count!