Leupold’s Standard (STD) Winchester 70A 1-Piece Base features forged and machined steel construction, delivering the durability and precision mounting your Winchester rifle deserves. Specifically designed to fit Winchester 70A rifles, this base is the perfect choice for standard calibers less than .300 Win. Mag. The 1-Piece Steel Standard Base is created with an eye on stability backed by the Leupold name, with high-grade steel providing the strength to withstand extreme recoil.
The Leupold steel standard bases and rings are among the most versatile mounting systems offered, with the rear ring secured by windage adjustment screws, giving you flexible zeroing options. The front dovetail ring pivots, allowing for lateral adjustment using the rear windage screws while bore sighting. Shims can be used for gross elevation adjustment, reserving the scope’s elevation adjustment for bullet drop compensation dial applications. Available in a matte finish, the model 50001 pairs with standard Leupold rings for a classic, proven mounting system.





