While you are on the site, in your browser find and click "Add to Home Screen" A CGN beaver app icon will then be created to your phone that is directly link to the site.
Note: This feature may not be available in some browsers.
I would definatly stay with a 243!
This caliber will not intimidate him too much
so that he will be able to concentrate on his shooting.
Many rifle choices!
Whatever you decide don't get a rifle with a lot of recoil. Years ago my dad started me out on a 30-06 when I was like 11 or 12 y.o. It took me a long time to get rid of flinching because of being shy of the recoil. I'd start him on a 243 but not a light weight model.