The standard two piece base for Weatherby Mark-V and high, 1" rings set from Leupold provides a solid platform for keeping scopes zeroed even after prolonged use of heavy-recoiling loads under extenuating circumstances. The base offers maximum access to the bolt handle and breech area for interference-free ejection and servicing. They fit both right and left-handed actions. The front base has a slot accepting dovetailed rings, while the rear base accepts rings with flat undersides, fastened by the base's windage-adjustable :- Fits: Weatherby Mark-V Bolt Action Rifles