I might have missed it in the pages on this topic - what position was the deer in when you took the shot - broadside straight on, broadside angled to or away, quartering?
I think shoulder shots are dangerous because if you are off forward from broadside you hit brisket and neck, and either can end up with a deer moving off without a trace. Quartering away and you can miss the lungs and possibly even the shoulder depending on angle.
The other question I have is I thought somewhere you said you saw the hole in the deer - you kept eye on scope and saw the puncture?
Have you target shot same firearm from same distance since, to see if scope is off?
I did think I saw a hole but I wasn't looking through the scope. That was me looking at him running away through the brush. If there was a hole there he woulda ran off dead legged and he did not. I shot my rifle last night and it was all over the place. It was dead on 3 weeks ago and has not been bumped around. It's a vortex crossfire with vortex mounts torqued to spec. I'll be replacing both this week. I'll buy a leupold vx and better mounts. I'll put 20 rounds through it with the new scope to make sure it's perfect. I only did 8 with the vortex but I had it dialed right in. If changing the scope doesn't get the results I'm looking for, I will change ammo. I've never had issues with hornady ammo but I've heard stories of others having issues. This won't happen again. I do get buck fever like most but I've learned how to mostly control it by focusing on that little spot I'm trying to hit. Shoulder shots can be great if you hit that bundle of nerves there. Kills em drt. I'm not in the business of wounding deer and I'm not flippant about my responsibility as a hunter to do right by these animals. I will pay whatever it costs to fix this issue with my rifle so it will not happen again. In the meantime I'll use my 308 or my shotgun. I know they are good. After reflecting for a couple days, walking through every spot that buck could have possibly gone, and shooting my rifle, I believe it was a clean miss. I do believe it's a problem with the scope or the ammo.