The Leupold steel standard bases and rings are the most versatile of any mounting system Leupold offers. The rear ring is secured by windage adjustment screws, allowing the scope's internal adjustments to be reserved for precise sight-in. Additionally, shims can be used for gross elevation adjustment, reserving the scope's elevation adjustment for bullet drop compensation dial applications.Read more
The forward part of the base accepts a dovetail ring, locking it solidly into position. The rear ring is secured by windage adjustment screws.
Long Range STD
Long Range STD mounts provide a 15-MOA slope of built-in elevation compensating for bullet drop at extreme ranges.