30x173mm

30x173mm refers to a specific cartridge size used in certain artillery pieces. The designation "30x173mm" indicates the caliber of the projectile and the length of the casing. The "30mm" denotes the diameter of the projectile, while "173mm" signifies the length of the cartridge case in millimeters. This type of ammunition is typically used in automatic cannons, often found on aircraft, armored vehicles, and naval platforms. The 30x173mm cartridge is larger and more powerful than common small arms ammunition, designed for engaging a variety of targets including light armored vehicles, personnel, and other aircraft. Its specific dimensions allow for a significant propellant charge, contributing to its range and kinetic energy upon impact. Ammunition of this size is generally classified as a high-explosive incendiary (HEI) round or armor-piercing (AP) round, depending on the specific application and threat being addressed. The development and use of such cartridges are part of the evolution of modern infantry support and anti-material weaponry.