Please explain "high shoulder" shot. I think I know what you mean but am unsure.
I've been taught to aim for the vitals.
That being said, I've yet to have a buck 'fold' where he's standing. One buck I shot, three years ago, was at 70 yds, straight on (directly facing me), shooting a 30-06 w/ 180 gr Federal boattails. I hit him dead center of the chest; but he was able to turn, run approx. 60 yds and bury himself under some palmettos. Myself, my mother, my father, my wife and 2 club members searched the area until 11pm with no luck (I shot him at 4:35 pm); there was absolutely no blood trail. It took my father's wolfhound to find the deer the next morning. When my father pulled the deer, by it antlers, from its 'hidey hole', all of its guts fell out of it's rearend, thus gutting was not necesary (my father opened him up and the cavity was completely gutted). You would think this shot would have 'folded' that deer easily. And this was a 140 lb. Florida deer.