Is a 9 MM luger bullet the same as auto bullet?

A 9mm Luger bullet is a type of auto bullet, but not all auto bullets are 9mm Luger bullets. Auto bullets are cartridges that are specifically designed for use in automatic firearms, such as pistols and submachine guns. They are typically centerfire cartridges, meaning that the primer is located in the center of the base of the cartridge. Auto bullets come in a variety of calibers, including 9mm Luger, .45 ACP, and .223 Remington, among others.

The 9mm Luger bullet is a specific type of auto bullet that was developed by Georg Luger in 1902 for use in the Luger pistol. It is also commonly known as the 9x19mm Parabellum cartridge. The 9mm Luger bullet is a rimless, bottlenecked cartridge that has a bullet diameter of 9.01 millimeters (0.355 inches) and a cartridge case length of 19.15 millimeters (0.754 inches). It typically uses a 115-grain bullet with a muzzle velocity of around 375 meters per second (1,230 feet per second).

The 9mm Luger bullet is a popular choice for self-defense and law enforcement due to its relatively low recoil and high capacity magazines. It is also a common choice for target shooting and sport shooting.