logo

Video encyclopedia

.40 S&W

2:53

Top 5 Reasons .40S&W is the best caliber on Earth

4:59

Hornady Critical Defense .40 S&W 165 gr FTX: SIM-TEST* w/denim

6:34

.40S&W is NOT a Good "Compromise" Caliber

2:18

Quick Tip: 10mm Auto vs .40 S&W - What's the Difference?

3:51

Love Hate Relationship With The 40 S&W

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 semi-automatic handguns. It uses 0.40-inch (10 mm) diameter bullets ranging in weight from 105 to 200 grains.
    • History 

    • Cartridge dimensions 

    • Performance 

    • Case failure reports