If as your original post stated you want the least amount of powder then 223 is probably your best bet although if you limited yourself to 100 yards a 357Mag rifle would be the way to go. If you want least cost then cast bullets are the way to go since all else being equal, bullets are the most expensive component. 100 yards is easy, 200 yards and you best pick your shots and know your trajectory.
Last edited by Blacktailer; 01/20/22.
