How to classify the caliber of artillery?

Artillery is a barrel-fired weapon with a caliber of more than 20 mm, which is powered by propellant. Its principle of action is to convert the energy of propellant burning in the bore into the muzzle kinetic energy of the projectile to eject the projectile, and at the same time, it will produce sound, light and thermal effects. The main tactical and technical performances of artillery are muzzle velocity, range, accuracy, firing rate and maneuverability. The main task of artillery is to shoot at ground, air and water targets, damage and suppress the enemy's effective forces and technical weapons, and complete other tasks.

According to the different platforms for installation and launch, it can be divided into ground guns, naval guns and aviation guns. According to the movement mode, it can be divided into fixed artillery, mule-horse traction artillery, mechanical traction artillery and self-propelled artillery; According to the operational purpose, it can be divided into ground suppression artillery, coastal artillery, anti-aircraft artillery, tank artillery and special artillery. According to caliber, it can be divided into: large caliber guns (antiaircraft guns 100 mm, ground guns 152 mm, naval guns 130 mm or more), medium caliber guns (antiaircraft guns 6 1 ~ 100 mm, ground guns 76 ~/. According to the structure of gun bore, it can be divided into line gun and smooth gun; According to the ballistic characteristics, it can be divided into cannon (low trajectory), howitzer (curved trajectory) and mortar (most curved trajectory); According to the loading method, it can be divided into front-mounted artillery and rear-mounted artillery.