Thread: what calibre for the young fella

heres my can of worms, my 10yo whats to hunt with me but wants to pull the trigger what calibre would you use, 243 and the 8mm have the least lick out of what i have, but i might be able to borrow a 6.5 x55. can i have experienced recommendations please, my sons nickname is noodle so gives you a idea on his build. cheers Mike