At present, among the tank families in the world, 120mm smoothbore guns are basically used in western countries, among which 120mm RH smoothbore guns of Rheinmetall Company of Germany are the most prominent, and almost become the general guns of the third generation main battle tanks in the west. The 2A46 series 125mm sliding-bore tank guns developed by the former Soviet Union are also world-famous, with more than 65,438+10,000 guns.

Application in warship

Early warships were equipped with shotguns. /kloc-in the 0/7th century, the sail battleship was a wooden hull structure, powered by wind, with a displacement of about 1000 tons. These ships are equipped with shotguns and can launch solid bombs. After the advent of the sail battleship, the tonnage gradually increased, the displacement increased to about 5000 tons, and the number of guns increased from dozens to nearly 100. The naval gun on the sail battleship is a smoothbore gun. For example, the British "Victory" is the leader of the sail battleship and the pride of the British navy. Built in 1765, with a displacement of 2 162 tons. It has three gun decks, equipped with 102 cast iron cannon and two giant short guns. This ship can volley half a ton of shells.