Designed for the 41 Remington Magnum revolver cartridge and introduced in 1970, these bullets made up one fifth of the total number of Sierra handgun bullets offered in that year. In 1984, the design was upgraded with the famous Sierra Power Jacket to make these excellent bullets even better. The 41 Remington Magnum cartridge and handguns chambering it have not become highly popular. Nevertheless, these true magnum bullets, which provide fast expansion and deep penetration on game, are suitable for all North American game normally hunted with a handgun. Shooters of 41 Action Express handguns will find these bullets very useful also, and should refer to the data section of Sierra Bullet's Rifle & Handgun Reloading manual for proper loads.