So after some testing, I found some bugs again that I decided to report here so people know what bugs are already reported, I will link the url's of the threads with bugs through to support.
Firing Line rubies do not seem to work on Acid Turret, but they do work on Light Turret.
Description says that the turrets firing speed increases so I think Acid Turret being unaffected is a bug.
All test are done on 319 swiftness. No double attack.
Acid Turret with rank 1 ruby, 57 ticks.
Acid Turret with rank 2 rubies, 57 ticks.
Acid Turret with rank 3 rubies, 57 ticks.
As seen, rubies do not influence acid turret attack speed.
Light turret, rank 0, 10 ticks.
Light Turret, rank 1, 12 ticks.
Light Turret, rank2, 13 ticks.
Light Turret, rank 3, 17 ticks.