HVR's problem is mobility rather than damage. Its way too easy to tap someone with a handgun, switch to the HVR and finish them off. It also can be fired in succession very quickly. It needs additional delay on equipping it and readying it for a shot, as well as additional recoil and slower "true up" time for a lack of a better term. You could reduce the damage from 85 to 75 and mitigate the handgun trick, but it'll still be devastating given how mobile it is. A sniper rifle is a tricky thing to balance anyway. Regardless how utterly worthless you make it, it'll always be powerful in the hands of a skilled player simply by the nature in which sniper rifles operate.