Around 1990 S&W began offering J-frame revolvers rated for .38 Spl +P ammunition and the following year introduced the Model 940, which used the 9mm Luger cartridge in full moon clips. 1995 saw the introduction of the Model 640, the first J-frame capable of handling the .357 Magnum cartridge. In 1999, new ground was broken again when S&W introduced the Model 331 and 332 (.32 H&R Magnum) and Model 342 and 337 (.38 Spl+P). These used titanium cylinders and internal parts mated with alloy frames and composite barrels to pare unloaded weight to a feathery 10.7 to 12 ounces.
S&W's J-frame revolvers handily survived the wholesale switch to semiauto pistols by American police. Their small size, light weight and powerful cartridges make them perfect for a backup gun carried in a trouser or jacket pocket or concealment holster, and they are especially suited for use with ankle holsters. Today, a large number of agencies still authorize the J-frame snubbie as primary, backup and/or off duty guns.
But the story doesn't end here. In 2001, S&W unveiled the Models 340 Sc, 340PD Sc, 360 Sc and 360 Kit Gun Sc with cylinders made from a new, superlight alloy known as Scandium. This change reduced the weight by an additional 20% while still allowing it to handle the powerful .357 Magnum cartridge.
Carrying Convenience
With the proper holster, a Chiefs Special-type revolver can be carried concealed all day in complete comfort. This means that, unlike larger handguns, it will most likely be with you when it's needed. Modern .38 Spl+P cartridges provide more than adequate power with only moderate recoil while the .357's abilities as a fight stopper don't even need to be rehashed here. Although, the latter cartridge's heavy recoil and muzzle flash would call for a greater degree of expertise on the part of the shooter.