This is my absolute favorite place to shoot a whitetail. If you hit him right where GB said, his neck will snap back and the chin will hit the ground.
This is NOT the job for a ballistic tip bullet. I prefer bonded bullets as they will hold together through the bone.
Also, the front point of the shoulder gives you a very positive aiming point, much like aiming at a bullseye.
BTW, on a pure broad side shot, if you shoot em straight up the leg, slightly above centerline of the body, you will get that same instantaneous kill. I feel as though I am a decent tracker, but it sure is nice when you don't have to.
Smoky