As I have heard before, people see the shots like in a war movie or Western. It doesn’t always work that way and we’ve seen people get shot a million times on TV.
Per your earlier post mentioning I believe a watermelon, people should envision say shooting a pumpkin on a post from 60 yards. How it is going to react is not that predictable. It could do a few things. And the physics may not be that open and shut.
Too, fragments were found on the President’s brain, the bullet may “defrag” so to speak rather than what I said explosion. There is real gun terminology in such debate.
At the least, it is clear that a shooting is not going to always happen as we might see it on TV.