This information is derived from a combination of sources: manufacturer's specifications,
measuruments performed by the Sporting Arms and Ammunition Manufacturers' Institute (SAAMI)
and approximation formulas devloped by Genitron.com.
Rankings shown here are based on a 7.5-inch revolver barrel. Rankings for guns of this caliber in our database will vary based on their actual barrel types and lengths.
In shooting competition the Power Factor is used to determine the competitive division in which a particular handgun/cartridge
can be used. It is 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, this formula calculates the relative effectiveness of bullets for hunting game.
TKO = (bull. mass x muzzle vel. x bull. dia.)/7000
From a performance perspective this cartridge falss in between the .44 Remington Magnum and the .454 Casull cartridges. It has slightly less relative recoil than either the .454 Casull or the .50 Action Express cartridges. Designed initially for use in Sturm Ruger's Super Redhawk revolvers, MAgnum Research and Taurus now also have revolvers chambered for this big game hunting round.