Masaad Ayoob had a good write up about the infamous Miami shootout where several feds were killed.
He read up on the autopsy reports and concluded that the 9mms had performed about as well as they could. He said those guys were using Ruger mini 14s. He also said they fought on for a minute of two after they were basically dead.
Among wounds, I still remember that one 9mm bullet tore the entire aorta off the heart plus several other non survivable injuries. It was just that these guys were tough and didn’t drop when they were fatally shot.
Basically the 9mm performed just as it should have. Changing to a hotter caliber woud not have helped unless you are maybe talking about a .44 mag or .41 mag.
Drugs make a big difference.