Turrets: 0/30/30/0/10 or 10/20/30/0/10?
Swap Autotool Installation for the superior Protective Shield or Stabilized Armor, and spend your last 10 points on Protection Injection. The reason being that you have no active defense such as a stun breaker. I know that your build is aimed at PVE, but you still need to be able to survive enemies that can stun you or knock you down. Having incoming damage reduction during those times can be a life saver. Autotool Installation heals too slowly and for too little.
There is nothing wrong with coated bullets in a turret build. On packs of enemies your damage will be greatly increased with this trait.
Good luck and have fun.