It's possible if you hit bone or extremely high velocity when the smackhappens with rapid expansion bullet. For example hitsmack on a rib the entrance side can have agood sizedhole in the body cavity(of course in the hide should be bullet diameter to slightly larger than).

OK, when I think "entrance hole", I'm looking at the hole in the hide, from the outside of the deer, before you start skinning him. Likewise, I consider the exit wound as it appears before skinning. But, even with a rapidly expanding bullet, hitting rib on the way in, it's going to push the bone fragments in. Even with fast expansion andbone fragments the entry wound won't be 2" with a .30 caliber bullet.The bone fragments increase the exit, not the entrance. See my pics on p. 2 of this thread. That's with a 150 gr. power-point, which isn't one of the slowest of the controlled expansion bullets.

A lotcompare the holes in the carcass not the hide. Your right usually the bone smashes in but I have seen cases where it doesn't. Perfect example was last elk season 300RUM200 AB, hit smack on the rib bone at 1/4 awayangle and finished through just behind the opposite leg. When we arrived to the scene to help drag out the bull the usual conversation transpired "details of the opportunity". Showing us where he shot him and the blood trail I found a 2" chuck of rib bone that was flushed out in his scamper, it was on the entrance side of the trail. This elk had a chuck of hide missing on the entrance where the rib bone fell out, the exit side of things was actually pretty similar 2-2 1/2" hole in the hide from the bullet exiting the animal. Everything in between was a mess as per usual. I suspect that the angle/hit, design and velocity caused the rib bone to actually go out vs in.

Only point is you don't know how a bullet will behave or act when it strikes it's target a lot of factors to contend with. So really just a guess, put it in the lungs and get notching your tag...

Cool. You learn something new every day. I've generally been fortunate enough to get straight through broad side shots, and hadn't really considered what might happen on a quartering shot.

ive shot deer with a 7mm mag before with ballistic tips and they do a considerable amount of damage but i have never saw any 7mm do that kind of damage.