What is 30mm shells?

30mm shells are a type of ammunition designed for military use. The diameter of the shell is 30mm, or approximately 1.18 inches. These shells are typically used in weapons such as autocannons and anti-aircraft guns. The shells are designed to penetrate armor and damage enemy vehicles and aircraft. They are often used in combat situations where a high level of firepower is required to successfully engage and defeat enemy forces. Different types of 30mm shells can be designed for specific purposes, including armor-piercing, incendiary, or high-explosive rounds. The effectiveness of 30mm shells in combat depends on many factors, including the type of weapon used, the distance to the target, and the skill of the operator firing the weapon. Overall, 30mm shells are a powerful and effective type of ammunition that have been used extensively in modern warfare.