Leupold 2-Piece Standard Scope Base Winchester 70 with Reversible Front and Rear Matte Type_Recoil Pads it is recommended that this

it is recommended that this bullet be fired in a load with an impact velocity no greater than 2800 fps and no less than 1900 fps

The 80 Grain MatchKing was developed for use in Service Rifle Competitions

For 1" slings

Bullet Weight: 235 Grains

Leupold 2-Piece Standard Scope Base Winchester 70 with Reversible Front and Rear Matte Type_Recoil Pads it is recommended that thisLeupold Standard 2 Piece Bases give you maximum accessibility to the magazine or breech of your rifle and more flexibility in mounting scopes to bolt action rifles. These steel bases will fit both right and left handed actions and will work with all brands of Standard Rings. Technical Information Material: Steel Style: Standard Notes: Allen Screws and wrench included Fits Winchester Model 70 Serial #66,350 & Above