Gunslinger Build (Lv. 10-200)

Eh, if you've played a BM, you'll notice that sometimes the attack is so fast that hits are soaked up by monsters that are already dead. Meaning you'll waste a few shots regardless of what you do.

As I said, that would be lag. Server lag results in some of this, but some is also caused by connection and computer lag. Some of it cannot be removed, but it does result in a lower waste of time shooting dead monsters as 1) you don't waste as many into dead monsters and 2) you can stop shooting sooner compared to the longer delay of Burst Fire's attack.