I've shot three whitetails at less than three steps away, two with a muzzle loader and one with a scoped .308. All from the ground while moving about/still hunting. Two were running towards me, both shots were almost "self defence". One deer died at my feet, the other swerved and died a couple steps away. I also stalked up to one that was under the lip of a river bank, I pretty much poked the rifle barrel into its neck and pulled the trigger. Quite satisfying hunts in all three cases. Shot a bull elk at about 4 or 5 steps away, but that's a significantly longer distance than those deer.