[Jack O Spades]

I want to set up a shooting scenerio in my backyard to practice some cowboy action drills so I kind of know what Im doing before I go to my first shoot. I wonder if any of you can give me some ideas as to target sizes and the shooting distances for each firearm (revolver, rifle, shotgun). Obviously it all varies from one shoot to the next. Im just looking for a good starting point because as of right now I dont have a clue...other than what Ive seen on Cowboys on The Outdoor Channel. Id like to go see some live shoots but they dont start in this area until April and I am hoping to be plinking well before then.