Don't play games with me. A full metal jacket 9mm won't do the same thing that a full metal jacket 5.7 would do. How hard is that to understand?

When did I tell anyone to use FMJ? Why would you want to on an animal?

That was the example that sprang to mind where a smaller bullet moving faster outperformed a larger bullet moving slower.

Research the 5.7 yourself and you won't have to act confused and go off on these tangental arguments.