The .44 magnum is a nice round. :thumbup:
With a bit less than 1,000 foot-pounds of energy at the muzzle; it's about the most that a lot of foils would want to be shooting...
But if you like SERIOUS power

:
There's always the:
.454 Casull
.500 S&W magnum
These aren't bad. They'll make just about any North American game animal think twice, before coming into range...
But I went for even more power.

My .375 JDJ throws a 220 grain slug at 2,350 foot per second (muzzle velocity)
That works out to almost 2,500 foot pounds of muzzle energy.:bowdown:
That's from just a 14" barreled single-shot pistol
Loaded with 300 grain solids; this round has been used to legally harvest elephants, and cape buffalo.