Duo Dovtl 30mm Rings Super-Hi Mat Description Leupold's trademarked Dual Dovetail system provides a low-profile mount for scopes on Remington Model 700, Winchester Model 70-type actions, and Browning A-Bolt-type actions. Because Leupold scopes are manufactured with ample Windage adjustment, rear Windage screws are unnecessary in this very simple, very secure mounting system.