The 7.62x25mm Tokarev is a pistol cartridge developed in the early 20th century for the Tokarev TT-33 handgun. It features a bottleneck design, allowing for high velocity and flat trajectory, making it effective for both military and civilian use. Originally adopted by the Soviet Union, the cartridge saw widespread use in various conflicts and was favored for its penetration capabilities. It remains popular among collectors and enthusiasts, with many surplus firearms still available today. The 7.62x25mm is also used in submachine guns, enhancing its versatility in different combat scenarios.