Which rate of fire for the M249 allows for 8-10 round bursts?

The rate of fire that allows for 8-10 round bursts, specifically for the M249, is categorized as rapid fire. This firing mode is designed for situations that require a more aggressive application of firepower, enabling the gunner to deliver multiple rounds in quick succession while maintaining effective aim on a target.

Rapid fire typically refers to firing sequences in which the weapon is fired at a rate of 100 to 200 rounds per minute. This allows the gunner to complete bursts that can effectively suppress enemies or deliver accurate fire while avoiding overheating the barrel, which is a concern during prolonged firing.

Other rates of fire, such as sustained and cyclic, do not align with the 8-10 round burst requirement. Sustained fire is aimed at maintaining a lower rate to manage heat and generally utilizes longer pauses between bursts, while cyclic fire represents an extreme rate intended for maximum output without regard to barrel overheating, typically resulting in continuous fire rather than distinct bursts. Emergency fire is also not a standard mode for achieving defined burst patterns like the rapid rate does.