105 mm

The term "105 mm" refers to the diameter of a cylindrical object, such as a shell or artillery gun, measured in millimeters. It indicates that the object is approximately 10.5 centimeters wide. In military contexts, a 105 mm caliber often describes artillery or tank guns designed to fire shells of this size, balancing range, power, and portability. The measurement helps identify the weapon's size and firepower capability, with larger calibers generally delivering more destructive force. Think of it as the width of a standard-sized soda can, but for military missiles or guns.