The .40 S&W is a rimless pistol cartridge developed jointly by major American firearms manufacturers Smith & Wesson and Winchester. The .40 S&W was developed from the ground up as a law enforcement cartridge designed to duplicate performance of the Federal Bureau of Investigation's (FBI) reduced-velocity 10mm Auto cartridge which could be retrofitted into medium-frame (9mm size) semi-automatic handguns. It uses 0.40-inch (10 mm) diameter bullets ranging in weight from 105 to 200 grains (6.8 to 13.0 g).

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    Primed 40 S&W Brass

    BTT Price lowered. 400 primed cases 40 S&W cases for $50. As I no longer shoot 40 S&W caliber, I am offering my remaining primed brass. This is range brass which I deprimed, wet cleaned and primed using Winchester WSP small pistol primers. I have three bags, 400 primed cases per bag at $60...
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