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40 S&W

The .40 S&W is a rimless pistol cartridge developed jointly by firearms manufacturers Smith & Wesson and Winchester. The .40 S&W cartridge has been popular with law enforcement agencies in the United States, Canada, and Australia. While possessing nearly identical accuracy, drift and drop as the 9mm, it also has an energy advantage over the 9mm and .45 ACP and with a more manageable recoil than the 10mm Auto cartridge.