Typical leupold quality - Leupold Dual Dovetail DD Bases

I have several of these on Encore barrels (including hard-kickers such as 338WM, 45-70, and 500S&W). No problems with fit or finish and good quality screws(with thread-locker pre-applied). On the Encore barrels all four screws are at the back end and the front ring is floating cantilevered above the barrel; that's why the rigidity of a solid steel mount is needed (particularly with a long or heavy scope).