According to the box of ammo it is FMJ if they are firing a .308
Win.

Shooting a soup can and shooting an animal are two very different things. Some notable things that come to mind are:

1: The soup can has a significantly lower volume than any game animal. This will cause the pressure spike inside the can to be significantly higher than inside the animal and thus the effects of the overpressure to be much more dramatic.

2: Skin and hide tends to be very elastic. It stretches out then returns to shape very well, the metal, not so much. this will allow the hide to expand to soak up the overpressure without a massive pressure related rupture like you have in the soup can.

3: Animals are not solid fluid through and through, things like the lungs and stomach are very compressible which do so to increase the internal volume of the animal and further reduce the pressure spike. The soup can is filled with an incompressible fluid like a hydraulic cylinder.

4: There are all sorts of things that happen in front of and behind the bullet with respect to dynamic pressure waves

So the very long answer is that there are no absolutes with respect to blood trails. If you look at high speed camera images of animals being shot you can see the pressure waves ripple across the hide and/or the body expand to absorb the overpressure condition. The more animals I shoot the more I realize that every single one is different.

While not perfectly scientific, I would think that a better analogy would be to shoot a 3/4 filled 5 gal bucket with the top on and a 2" hole cut in it. The volume would be much closer to the body cavity volume of a deer than is an 8oz soup can and the airspace in the top of the bucket and the hole would allow for compression of the air and venting (similar to the lungs collapsing and air being forced out the mouth and nose). My guess is the results would be not nearly as impressive as the exploding soup can and probably make for a pretty dull video.