Here's one that made it maybe 15-20 yards...I watched him flop in a Kansas draw after a 50 yard off hand soft tissue hit,sort of frontal shot angling back.
Note the exit and yes there was a blood trail, but who needs it right?
270 Winchester and 130 Nosler Partition. Just so much of the same stuff it's predictable and pretty boring because I see this sort of thing frequently...soft tissue or shoulder hits.
If I had to bet any serious money on dumping a grown up mule or whitetail buck before it got out of sight in cover (or the open for that matter), it would be one of these in a 270, 280 or 7 Rem Mag.
I think velocity has a lot to do with it.