In what units are bullets typically measured?

Bullets are typically measured in terms of their diameter and length, which is often expressed in hundredths, thousandths of an inch, or millimeters. This measurement helps identify the specific caliber of the bullet, which directly corresponds to its performance and compatibility with different firearms. For example, a bullet that measures .22 inches in diameter is often referred to as a .22 caliber, and in metric terms, a bullet might be measured as 5.56 mm for a specific type. These measurements are critical for accuracy, safety, and the proper selection of ammunition for firearms. The other units listed do not pertain to the standard measurement conventions used for bullets, focusing instead on broader units of measure that are not applicable in this context.