.30 Carbine is a type of centerfire rifle cartridge that was developed for military use in the early 1940s. It is commonly used in rifles such as the M1 Carbine and other firearms. The .30 Carbine cartridge is known for its moderate recoil and is popular among shooters for its accuracy and versatility. Rifle brass for this caliber is widely available and is known for its durability and precision. It is important to use high-quality rifle brass when reloading .30 Carbine cartridges to ensure consistent and reliable performance. Overall, .30 Carbine is a popular choice for target shooting, hunting, and self-defense.