
Handgun Caliber Bullet Diameter in (Inches and Millimeters) Bullet Weight in (Grams and lbs) Bullet Velocity in (Feet/Second and Meters/Sec) Average Price per Round Suitable Purpose. The intended purpose as the table below indicates, helps show this fact. There could be slight variations here and there with these dimensions and the numbers used may not necessarily follow a linear progression but the general implication is that large caliber bullets or guns will generally deliver more energy with the exiting bullet as opposed to smaller caliber ammunition.

You may have noticed that bullet diameter, barrel diameter, and gun caliber are words used almost synonymously to refer to the actual gun or bullet capability. Bullet Guide: Sizes, Calibers and Types Popular HandGun Caliber Sizes
