I am looking to purchase a barrel for my T/C Encore or new Handirifle in .204 or .223 for varmint hunting. I now own a 12 gauge ultra slug which I am very satisfied with but have never owned an H & R centerfire rifle. I have a Burris 4.5 - 14 x 44 scope I would like to use. I guess I need some help on making this decision. I bought a new 20 gauge slug barrel for my Encore but could not get it to group so I sold it. Also which of the calibers would you recommend for foxes and coyotes. Thanks, Barry