This is not a deer, but The shot applies to deer and similar animals. It's straight up the leg, 4" below the top of the back. It's the spine and they are instantly dead. I use this almost always unless I'm testing bullet performance. It does not apply to most any of the large African animals. Their spines are funky shaped, so you'll miss. Plus most carry vital organs very low in their body.
That is a nice bushbuck. I come straight up the foreleg 1/3 of the way up from the belly line. They drop at the shot.
I prefer this shot, although on bull elk I have twice intentionally put the bullet through the center of the shoulder to try and break them from running off. Sometimes a lung shot bull can go a long long ways. But for this shot you have to have a very tough bullet that can break bone and keep on going. Partitions work, ML Black Belts and Power Belts DON'T.