I want to look into getting a shotgun for coyotes. I would like to know experience people have had with barrel lengths. I read a lot say 28 inch is what you want. I would like shorter for transporting and maneuverability. A lot of the terrain i hunt in is thick desert and when they come in its quick. Most shots wont be passed 50 yards. Would a 20-22 inch barrel have a decent pattern to be effective? What are your experiences?