The only moose that I have shot through both shoulders was with a .308 and a 165gr. Remington Core-Lockt bullet at under 100 meters. I was kinda surprised that the bullet did manage to break both shoulders of the running moose. I hit a mite forward of my aiming point. Results were spectactular. And a sample of one means little!
Yeah - one of the most surprising hits I ever made was on a spike bull at 120 yards, using 225 Trophy Bonded in the .338. Went clean through the animal, including both shoulder blades, didn't knock him down. The second round broke a front knee, the third as he was headed for the brush going away and a bit right creased the front of the ham, passed through the stomach, etc, and exited the same hole as the first. By that time he was pretty sick, and likely about to tip over anyway, but stopped sideways at 140 yards, and a 250 grain Sierra GK 4 inches above #1, just under the spine, knocked him flat. Toughest moose I've ever killed, and certainly an exception. Mostly they die easy, just take a little time doing it.
Another reason I favor CNS shots inside 100 yards when I can get them.