Introduced by Smith & Wesson at about 1902 with a 158-gr. round-nose lead bullet, the .38 Special long ago became the most widely used centerfire revolver cartridge in the United States. Mild by todays standards, the .38 Special holds a strong following, despite it's declining use in it's original role as the standard issue law enforcement cartridge (losing ground to auto-based cartridges and the .357 Magnum). Still, in some jurisdictions where the larger cartridges bring concerns of unecessary force, the .38 Special remains a natural alternative. The diameter of the .38 Special bullet is actually .357-inches. In fact, the .357 Magnum has the same external dimensions except for length (the Magnum is .135-inches longer). The benefit is that .38 Special ammunition can be fired in .357 Magnum revolvers (with considerably less recoil). The reverse is not true. .357 Magnum cartridges will not fit into a .38 Special handgun. The .38 Special is an excellent cartridge for the beginning handgun shooter/reloader, as it is inexpensive to shoot and light in recoil. It promises to be a favorite for generations to come.