Hello Buzzsaw, I haven't read all the wonderful advice these guys have given you. I read your question and read 2 pages of guys telling you how to practice and be able to shoot at 100, 200, 300, etc. without a shooting aid. I didn't read anymore, so if someone mentioned this already I apologize. We keep a 1 inch nylon strap hung from the ceiling inside the windows of our shooting houses. The grip of the stock goes in there and the rifle forearm rests on the towel covered window sill. This helps quit a lot shooting across a 450 yard wide bean field. When your hanging your strap, have your rifle and set it up like your going to shoot way out. Not close as you don't need it there. Kevin