The .41 Magnum is a lot like the .40 S&W and the .357 Sig. All made for law enforcement. All embraced by LE for a time and all fell out of favor. I think at the end of the day LE has realized that the 9MM and .45 will handle most problems. Also, with the advent of many/most LEO's now being armed with long guns the need for a more powerful handgun cartridge has diminished. While the .41, .40 and .357 Sig are great cartridges, the lack of readily available ammo has put them in the back seat.