The term "12 Gauge" refers to a specific size of shotgun ammunition, commonly used in firearms. The "gauge" indicates the diameter of the shotgun barrel, with a lower number representing a larger bore. A 12-gauge shotgun is versatile and popular for various applications, including hunting, sport shooting, and home defense. In addition to its size, 12-gauge ammunition comes in various types, such as birdshot, buckshot, and slugs, each designed for different purposes. The 12-gauge shotgun is widely recognized for its effectiveness and power, making it a preferred choice among many shooters and hunters.