I wasn't going to post since this is a PRB thread, but I decided to to show a different side of things. I use conicals. 460 gr paper patched flat nose wide meplat conicals to be exact. I do aim for a shoulder in some cases. On elk I tend to aim for the off shoulder. I pound the heart lungs and then the shoulder on the way out. This year I hunted for 4 days without seeing a single elk. On my last day of the hunt I found one next to private land. I had to flatten this elk and I had to do it in less than 200 yards. I could not allow this animal to get to private land. So when she came in I took out the shoulder.
The shot was 60 yards and I hit about 3" higher than I really wanted. The shot completely shattered the shoulder. The lungs were mush.
Then the bullet traveled to the flank where I found it under the hide. There are cases you need to lay them out flat. I know my conical loads will do it.
Later I had a deer hunt. Again I was on my last hunting day and found the biggest buck I had seen since the opening day when elk hunters scared a bunch of bucks I had my eye on. The shot I had because of brush was a shoulder shot. At the shot the buck was instantly dead. The fastest ML kill I have ever seen.
I personally don't know if a PRB would have performed different. All I am commenting on is how a well constructed conical will do with shoulder shots. The bullets I make get the job done. Ron