.40 Smith & Wesson (also known as .40 S&W) is a centerfire handgun cartridge that was developed jointly by Smith & Wesson and Winchester in 1990. It is a popular and versatile cartridge that is widely used for law enforcement, self-defense, and target shooting.
The .40 S&W cartridge is typically loaded with a 165- to 180-grain bullet and has a muzzle velocity of around 950 to 1,200 feet per second, depending on the load. It is known for its balance of power and controllability, as well as its versatility and effectiveness.
The .40 S&W cartridge is compatible with a wide range of handguns, and is commonly used for law enforcement and self-defense applications, where its power and accuracy make it a popular choice for stopping threats quickly and effectively. It is also popular among target shooters, particularly in competition shooting, where its accuracy and flat trajectory make it a top choice.
Overall, the .40 S&W cartridge is known for its balance of power and accuracy, making it a popular and versatile choice for a wide range of shooting applications.