After seeing that video several times I could only think that if I were in that spot, then I'd hope I had my 4" S&W 686 on me with either a 125 gr. XTP 357 Mag. handload or a 38 Spl. +P+ handload with a 158 gr. hard cast SWC. That gun with either load would probably give me my best chance at a head shot. And I'm no hot shot pistolero.
I was thinking the same thing. Maybe even a 6 or 8" barrel. Neither conceal well at all, but a long-barreled revolver is easy to shoot well at a distance.
i can hit clay pigeons at a 100 yds with my 3 inch 357 ruger.
