The .38 Super is a semi-automatic pistol cartridge introduced around 1929, known for high velocity and a flat trajectory. Long a favorite in competitive pistol shooting, it offers more velocity than many standard handgun rounds in the 1911-style pistols it is most associated with.

The .38 Super was introduced around 1929 as a higher-pressure development of an earlier .38-caliber automatic cartridge, created to deliver more velocity and penetration from semi-automatic pistols of the era. It became closely associated with the 1911 platform, where it offered notably higher velocity than the standard .45 ACP. Ballistically the .38 Super fires a bullet commonly around 115 to 130 grains at high velocity for a handgun, producing a flat trajectory and the ability to make "power factor" requirements in competition while allowing higher magazine capacity than the larger .45 ACP. Those traits made it a longtime favorite in action and practical pistol competition, particularly in divisions where its combination of velocity, capacity, and manageable handling is advantageous. While it never displaced the mainstream service cartridges in the United States, it earned a durable niche among competitors and enthusiasts, and it has a strong following in some international markets. Its ammunition and pistol availability, while narrower than mainstream rounds, is well established within its niche. Today the .38 Super is used for competition, self-defense, and target shooting, primarily in 1911-style pistols, with steady availability within its enthusiast and competitive base. Its combination of high velocity, flat trajectory, and competition-friendly characteristics is why it has held a dedicated following for nearly a century.

General information about this caliber — not a recommendation for this specific firearm.