Seawolf said:A Barrage at that level would land 3 arrows on average (with 4 being max). There is no way you could average 350dmg at level 30 unless each arrow does 110+ dmg (which is impossible at RNG 30-31).
Barrage is awesome, but I find that number unbelievable.
Well, you should probably note he's most likely fighting bats at the time. Arrows on bats is like a hot knife through butter.