alot of gun training videos are good to watch, some are funny in that some don't know squat.Some are very informative.
I found the best videos, and this will not be for everyone, is to watch real life gun fights, cctv, gore.. Sometimes it can be hard to watch, but I think I have seen more scenarios than I want to talk about. Seen different guns being used, and their effects to the body. Like I said its not for everyone, but its something you can learn a great deal from..I've seen people shot with 1911's, shotguns, ar, aks.. you name it. They are all not pretty, but carrying a gun, comes with alot of responsibility, and you should be aware of the awful truth about homicides, self defense shootings, and the only way to really know is to see others, go through it. What did the people do to survive and what mistakes they did that cost them their lives..No teacher that I know of, does this...
Something to think about....