I once shot a buck at 35 yards with a 3006 and blew the heart out the other side to the point it was hanging out externally pumping blood all over heck and creation. Deer still managed to run 100 yards.

Two seasons ago I double lunged a doe with a .50 cal Knight 250 gr xtp. Deer ran 100 yArda and piled up. Not one drop of blood until I got within a few feet of it. I could never explain that one.

Same bullet same ML dbl lunged a different doe a few days later and Stevie Wonder could have followed the blood trail.

go figure.