210 mm artillery

The term "210 mm artillery" typically refers to a class of artillery pieces that have a caliber (the diameter of the gun barrel) of 210 millimeters. This size of artillery is often used for heavy bombardment and is capable of firing large, high-explosive shells over significant distances. The most notable example of 210 mm artillery is the Soviet 2S7 Pion, a self-propelled gun that was designed to provide fire support and destroy hardened targets.