The Leupold steel standard bases are the most versatile of any mounting system we offer. The rear ring is secured by windage adjustment screws, allowing the scope's internal adjustments to be used for precise sight-in. This specific model fits a Winchester 70 Long Range. STD rings come in five different heights and are precision engineered to match up with STD 1-piece or 2-piece bases.
Specifications:

Type	1-Piece Base
Model	Winchester 70, 670, 770, & 770A Long Action
Style	Standard
Misc	Designed To Receive Standard Rings
Finish	Black Matte
Material	Steel
Pieces
Gun Type
Mount Type
Length
Rings Included	No
Ring Height
Mount Height