To improve eye relief, try Weaver's Detachable Extension Top Mount Rings. They position the scope 3/4" farther forward or backward. They are ideal for long actions and the long objective, short bodied scopes. Package includes one standard detachable ring and one detachable extension ring.
Features and Specifications:
1" Quad Lock rings
4 straps for gripping strength
Mounts to all Weaver top mount bases