.500 S&W Special
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The .500 S&W Special is a cartridge made by Smith & Wesson for use in revolvers. It is a shorter version .500 S&W Magnum with a drastically reduced load, much as the .38 Special is to the .357 Magnum. However, unlike the .38 Special and .44 Special, the .500 Special came after the .500 Magnum.
The purpose of the .500 Special is to be able to shoot less expensive, less punishing loads in firearms chambered for the .500 S&W Magnum