RE: No exit wound?
Don't feel bad I shot a bull elk last weekend with a .338 win mag at about 30-40 yds and there was no exit wound.When I skinned the bull the bullet was up against the hide on the opposite side.
I was shooting a .338 Win Mag with 200 gr. Nosler balistic tips(Not the bullet of Choice for Elk).It did the job and was devastating to him he ran maybe 10 yds.He was still breathing when I walked up on him but he was dead.