starting a 11 year old

[PEEWEE69]

Ammo is not a big deal since I reload so a 280 AI not a big deal
As far as rifle I have a couple of rifles I could re barrel

 

[wackinandstackin243]

The 243 win is a caliber that your son will never out grow. With the right action, you can always keep making improvements on stocks and triggers as you go.