Muzzle velocity when fired from a typical handgun. Measured in feet-per-second.
Muzzle energy when fired from a typical handgun. Measured in foot-pounds.
In shooting competition the Power Factor is used to determine the competitive division in which a particular handgun/cartridge
can be used. A simple calculation of the bullet's mass times its muzzle velocity.
PF = bull. mass x muzzel vel.
TKO-Taylor Knock Out Formula
Developed by big-game hunter John Howard Taylor in the 1940's. Calculates the relative effectiveness of bullets for hunting game.
TKO = (bull. mass x muzzle vel. x bull. dia.)/7000