23 shots per person that do just shy of 150k apiece will close his back faster.
Even though diminishing DPS is still better than no DPS done at all. Not to mention skyburner's annex or thrall giving special ammo works in our favor as well.
We have a more well thought out strat in my team. Everyone has a role, and the fight is under our control the entire time.
2 damage runs. One loot drop.