regulator question

[abel9eb]

When you adjust the velocity and turn the regulator nut does that change the opperating pressure of the gun or does that only control the volume of the air being used to fire.

Somebody told me that adjusting the velocity only controls the volume of air being used and the input pressure was the opperating pressure of the gun. I'm fairly positive he's wrong.

I have an RT Pro and i know opperating pressure controls trigger bounce but it has no bearing on velovity, correct?

Thanks for any help

[Dayspring]

It controls the pressure of the air in the dump chamber. The volume is set.