Agree, if an adult or even teenage hunter has $500-700 to spend, I am advising .270 Win, .243, 6.5 Creedmoor, .308 all day long for strictly deer.
If they want a rifle for Elk, Bear, Safari, that can hunt almost all North American Game, then I am recommending 7MM, 30-06, 300 Win Mag, or even...