Good call Clarkie your spot on, I'm a hunter and one has a duty to the game to dispatch it with utmost speed and with minimal suffering he should have had dogs and walking in fact by your account I would not have felt very safe with a nutter like that firing off rounds.
I shoot rabbits with a 22/250 up to @200m with 55grn blitz kings which devastates them if I am trying for say 400m I'll use the 6.5/284, for foxes spotlighting I use the 168 grn Hornady A Max in my APRS .308