You made a great shot, BUT
You made a fantastic shot that you will remember for the rest of your life. You can be proud of you ability to make it. The problem that I have with it is 99.9% of the shooters/hunters can't shoot that far. Watching your video someone else might think hea I want to try that, bad idea. Again you made a very tuff shot, I just hope others doing try to copy it. I have Elk hunted with a guy that shot his Elk at 450 yards. He got it on a shot that I know I would not have taken. My rifle was capable of his shot, I wasn't capable of his shot. It is very important for our sport that we all know our limitations and respect the wonderful animals that we are hunting. I know that you wouldn't have taken the shot if you thought you were past your personal limit.
Congradulations on a great shot...