.500 S&W Magnum - Wikipedia
https://en.wikipedia.org/wiki/.500_S%26W_Magnum
WEBThe .500 S&W Magnum is considered by some to be the most powerful standardized, mass produced handgun chambering by virtue of its considerable muzzle energy (*see note below). Incidentally, a lengthened form of the cartridge, the .500 Bushwhacker, is considered the most powerful custom handgun chambering. [4]
DA: 74 PA: 13 MOZ Rank: 14