"Small caliber" refers to firearms and ammunition that have a relatively small diameter, typically less than .22 inches (5.56 mm). These weapons are often used for target shooting, small game hunting, and training due to their lower recoil and noise levels. Common examples include the .22 LR and 9mm cartridges. Small caliber firearms are popular among beginners and recreational shooters because they are easier to handle and control. They are also used in various competitions, such as plinking and bullseye shooting, where precision and accuracy are essential.