I recently harvested a 300lb muley with a much closer shot than expected with a 300 gr OTM shot from my 338 rum @2830 The shot was only 80 yards, the deer never moved from his bed and was instantly DRT. Shot went in through near shoulder breaking the shoulder blade into many pieces, bullet destroyed internals and came to rest on the outside of the far shoulder not hitting any bone on the far shoulder. Bullet was even with the outside of the shoulder but just shy of the hide. When butchering I saw the bullet on the outside and simply pulled it out. On a note, the bullet caused almost zero blood shot of edible meat, very strange for all the damage it did.
This makes my 5th kill with the 300 otm. So far so good and I am happy to have some data on close shots in case I have to use one to defend myself against something with big teeth and claws. My other kills with the 300 are buck antelope @ 350 hit a bit farther back than desired, but two steps and done, doe antelope hit a few inches off the mark @ 300 (realized the atv knocked the scope off, switched to a picatinny rail to solve the problem) 5 point bull elk, big body @ 550 instant lights out, shot hit behind shoulder, no exit, I didn't look for the bullet since I was just cutting off the quarters and I heard what I believe to be a grizzly chomping his teeth in the heavy cover below me, forgot to get the ivories too! Kind of funny how you can get a little shook up when you think you have gone from the hunter to the prey! Next kill was a cow elk at 200 hit in neck, drt big exit hole.
My next tags are a couple of doe antelope that I want to try my 215's from my 300 ultra and then on to a late season bull tag and another cow tag for some more results with the 300 otm.
An interesting note, last year on a cow elk hunt, my hunting partner and I were above a herd of cows and calves I gave him first shot. He hit a cow with a 300 smk from his 338 rum @ about 2700 muzzle velocity, then I shot dropping my cow. I asked him if he got his and he said he was sure he hit his mark. A few minutes later I saw a cow elk walk behind a tree about 400 yards away. The rest of the herd was gone. I told him she must be hit. She went behind the tree and never came out. It was his elk. We aren't sure what happened with his shot, because there was also no exit but we were very surprised she went so far. We wish we would have opened her up to examine what the bullet did.