Anything that can blow a guys head apart from that distance HAS to be good for the revolvers.

Pardon my technicalism, but revolvers have short barrels, they are no good for shooting anything with accuracy over 50m, you guys need to make a 1m long Barret .50 Cal Sniper Rifle to match this guy.

I also have another idea. With the science know how of Tom and Prof. we could make a railgun, using Electric Frank as our 150000v power pack to launch pieces of metal at terminal velocity, plasmerising anything in its path.