Had a good conversation with a friend last week about this very subject. His children are older than mine and here is the method he used that I think makes great sense: teach the child to shoot lights out with a bolt action .22 and scope (hopefully they already know how to use iron sights!!). Breathing, trigger control, proper mounting, shooting off a stand rail etc. are easily accomplished with the .22 and a lot of fun. When the season opens, get in the stand with them, load and hand them a .243, possibly with reduced recoil rounds, and let them take a shot inside of 100 yards, no further. Adrenalin takes over, rifle does its job, there is not much recoil anyway, and you have a dead deer and an exicted kid. Game over. If the child can't handle the above then, IMHO, the child is too young to hunt. There is nothing wrong with waiting a year and they don't have to kill the first time or all the time.