Absolutely two different mediums , compare apples with apples!
Over 60 years of hunting/killing big game experience, countless dear and 38 moose plus western big game and caribou, I have a very good idea / knowledge of what a bullet will do using everything from standard lead cup and core bullets to various solids.
There is absolutely no comparison in shooting a bullet into a piece of poplar and animal flesh .
Comparing the two shows a very definite lack of knowledge.
That is like the fellow here a number of years ago was going to do penetration tests on dead chickens hanging on a fence, to see how his shotshell ammo penetrates, dead chickens verses live flying ducks, ludicrous! , he was laughed/ridiculed right off this forum.