I have to amend my list and put my .500 Maximum (525s at 1,350 fps) in second place after the .50 Alaskan.

Max Prasac

Semper Fidelis

BIG IRON: https://www.youtube.com/watch?v=L6aXjMH5C30

Gun Digest TV's Modern Shooter: https://www.youtube.com/watch?v=nGo-KMpXPpA&t=7s