Evolution Gun Works manufactures this Picatinny scope base specifically for Winchester 70 WSM rifles. The base is machined from 6061-T6 extruded aluminum and finished in matte black. It features 0 MOA with a center spread of 3.514″ (measured center to center between the two middle holes on your receiver). Overall length is 6.670″.
Installation includes hex head screws and wrench. EGW recommends applying 20 inch lbs. of torque and a drip of blue Loctite during mounting. The base dimensions are 0.95 X 3.50 X 8.30, with a height of 0.9500″, width of 3.5000″, and length of 8.3000″. It is designed to accept MIL-STD 1913 Picatinny rings (not included) and is made in USA.
