I roll my own so effective loads are not an issue. I was hoping, however, that she could shoot the 223 for a while and get used to a centerfire and THEN go back to the 243 maybe the following year for a chance at her first deer. I know that I can humanely kill a deer with 22 cal, I've done it numerous times, but I've also got 25+ years experiece at hunting whitetails with rifles. So, I think that I'll get a 223 (22") barrel, along with the extra hearing protection mentioned above and let her spend the next year building confidence and then try to go back to the 243 for the 2007 season and possibly her first shot at a deer. Thanks for the help.