I just happened to be thumbing through a couple of ancient books by Jeff Cooper, and noticed something quite interesting. In The Complete Book of Modern Handgunning (1964), Jeff devoted a whole chapter to the “454 Magnum”, which had just been developed by Dick Casull. Jeff waxes eloquent: “The performance of this gun is absolutely phenomenal. It does things that have to be seen to be believed.” Jeff then describes the performance of a 230 grain bullet “at over 2000 feet per second” on a 10 quart can of water, comparing it with the destructive power of a 300 magnum fired from the same distance. Col. Cooper’s take on the 454 as a hunting tool: “On game, the killing power is no less phenomenal. Several one shot kills have been made on deer, one around 100 yards, and all bullets passed completely through with extremely large exit holes.”
In Cooper on Handguns (1974), the Colonel does a one-eighty, declaring “As soon as the .44 Magnum was accepted, various experimenters decided that anything that could be done with a .44 could be done better with a .45. This may be true, but one wonders what is to be accomplished thereby. Very violent ballistics are claimed for the several “big .45s”, but any practical edge they may have over the .44 Magnum seems small, and they remain oddities, difficult to obtain and maintain, and obscure of purpose.”
I wonder what soured the good Colonel on the 454? Or did he just forget what he had written ten years earlier? Go figure…