When playing on Refinery, I have been sniping multiple times around the area in the picture and around the oil pump jacks near by. The bullets will ricochet because of the hitbox implemented around the oil pump jacks around the location from this picture. Wish I had a map key to better lay this out.
I will be snipping defending Alpha from the attacker which spawn from this picture. When the enemies go right (towards the oil jacks) my shots will ricochet because of the hitboxes, the enemy also would not be able to hit me either.