Hell some people here say a .243 isnt enough for deer
Its not.

Isn't the fun of shooting a deer with a rifle to see the massive damage from the exit wound?

I mean any gun you use on deer within reason, your overgunned, its just fun and revenge for them not getting into bow range for the past 2 months. So if you going to do it, do it hard. I mean your already at a significant advantage with a gun.