This specific cartridge designates a small-caliber, high-velocity projectile designed for use in certain firearms. The round’s compact size allows for greater magazine capacity, while its high velocity contributes to a flat trajectory and improved range. A key characteristic is its ability to defeat specific types of body armor, making it suitable for specialized applications.
Originally developed for personal defense and close-quarters combat scenarios, this type of ammunition offers advantages in situations requiring compact weaponry and enhanced penetration capabilities. Its historical context lies in the need for a round that balanced lethality with controllability in confined spaces. This specific performance profile makes it relevant for military, law enforcement, and civilian markets.