Last year I shot a big whitetail with a weatherby .300 with a 180 boat tail. He was at 80 yards, dropped in place, and not a very big hole at all. I think at that distance the bullet is moving so fast it doesn't have time to expand that much.
Same rifle and round shot my uncles deer at 200 yards this year and blew the back boulder apart lol.
Are you talking about the entrance hole on the 80 yards shot by any chance?
The bullet most probably blew apart inside the chest cavity.
it 's really unlikely the bullet didn't expand. And if it's what happened, it did because of a defect in the bullet and would have done the same at any distance.


















































