What is a characteristic of a bullet?

A bullet is a projectile that is expelled from a firearm when it is fired. One of its primary characteristics is that it is typically made of materials like lead, which can also be coated with other metals to enhance performance and reduce barrel wear. When a bullet is fired, it travels through the barrel of the gun and is propelled toward the target. The composition of bullets, often involving lead, aids in their weight and density, which are crucial for ballistic performance.

The other options do not accurately represent the nature of a bullet. For example, stating that it is always made of plastic is incorrect, as bullets are most commonly made of metals. The assertion that a bullet is designed to remain in the chamber contradicts its function, since bullets are intended to be fired and travel out of the firearm. Lastly, describing a bullet as primarily a powder container inaccurately identifies its purpose. Instead, the bullet is the projectile itself, while the gunpowder is contained in the cartridge casing, which provides propulsion when ignited.