The 9mm vs 40 Smith & Wesson (40 S&W) debate has been raging since the introduction of the 40 S&W in early 1990. Typically, the debate centers on which of the two pistol cartridges are superior for concealed carry. The law enforcement community has flip-flopped on this issue over recent years...

The .40 S&W cartridge was developed with two specific goals in mind – to have more stopping power than the 9mm Parabellum, and better handling and manageability than the .45 ACP. With these goals in mind, a team comprised of technicians from Smith & Wesson and Winchester built the .40 S&W...