What are the two main categories of ammunition based on usage?

The correct categorization of ammunition based on usage is between practice ammunition and live ammunition. Practice ammunition is specifically designed for training purposes, allowing individuals to practice marksmanship and shooting skills without the risks associated with live rounds. This type often has reduced lethality features, such as being made with less powerful propellants or projectile materials that do not fragment upon impact.

Live ammunition, on the other hand, is intended for actual combat or hunting scenarios, featuring full power cartridges that are capable of delivering lethal force. Understanding this distinction is crucial for safety and effectiveness in training environments, as well as in operational contexts.

The other categories listed, while relevant to ammunition types, do not specifically address the usage context that separates them into these two main groups. For example, rifle and pistol ammunition are types of firearms, while civilian and military ammunition refer to the intended user demographic, and fragile versus durable ammunition describes physical construction rather than usage context.