What are the two main types of rifles categorized by their operation mechanism?

The two main types of rifles categorized by their operation mechanism are commonly identified as battle rifles and assault rifles. A battle rifle is typically characterized by its capability to fire full-power cartridges and is designed for use by military forces. These rifles generally have a more robust construction and are effective at longer ranges. On the other hand, an assault rifle operates on a different mechanism, usually allowing for selective fire, meaning it can operate in semi-automatic and fully automatic modes. This type of rifle fires intermediate cartridges which provide a balance between the heavier cartridges of battle rifles and the lighter cartridges used in most civilian rifles.

The distinction between these two types revolves around their design, intended use, and operational capabilities, making the combination of battle rifles and assault rifles the most fitting answer for classifying rifles by their operational mechanisms. Understanding these classifications aids in grasping the broader context of firearm designs and applications in various scenarios, particularly in military and tactical environments.