The 9mm Parabellum, also known as 9mm Luger, is a popular handgun cartridge developed in 1902 by Georg Luger. It is widely used in various firearms, including pistols and submachine guns, due to its manageable recoil and effective stopping power. The cartridge is known for its versatility and is commonly used by military, law enforcement, and civilian shooters. This cartridge has a bullet diameter of 9mm and typically holds 15 to 17 rounds in standard magazines. The 9mm Parabellum is favored for self-defense, target shooting, and competitive shooting, making it one of the most widely used ammunition types globally.