The EGW Winchester 70 Long Action (Pre-64) Picatinny Scope Base (brand part number 42100) mounts a Picatinny-pattern rail directly to a Winchester 70 Long Action (Pre-64) receiver, built to a 0 MOA incline. Evolution Gun Works machines the base from 6061-T6 extruded aluminum and finishes it in matte black for a durable, corrosion-resistant mount, running 7.064 inches overall with a 3.805-inch center spread between the two middle mounting holes. The base ships with hex-head screws and a wrench for installation, and EGW recommends 20 inch-lbs of torque with a drip of blue Loctite on the screws. It’s made in the USA to EGW’s standard tolerances.

Key Specifications

• Machined from 6061-T6 extruded aluminum for a strong, corrosion-resistant base.
• Finished in matte black to match most bolt-action rifle builds.
• Built specifically for the Winchester 70 Long Action (Pre-64) receiver.
• Set at 0 MOA to the mounted rail.
• Runs 7.064 inches overall in length.
• Spaces the two middle mounting holes at a 3.805-inch center spread.
• Mounts with hex-head screws and a wrench included.
• EGW recommends 20 inch-lbs of torque with a drip of blue Loctite during installation.
• Requires Mil-Std 1913 Picatinny-pattern rings, sold separately.
• Sold as the base only, with no mounting rings included.

Frequently Asked Questions

What rifle does this base fit? The Winchester 70 Long Action (Pre-64), and no other action.

Are scope rings included? No, this is the base only; you’ll need a separate set of Picatinny-pattern rings.

What does 0 MOA mean for my setup? At 0 MOA, the base sits level with the bore for typical hunting ranges.

Buy the EGW Winchester 70 Long Action (Pre-64) Picatinny Scope Base, 0 MOA

Get a precisely fit, recoil-rated base for your Winchester 70 Long Action (Pre-64). Order it from our Evolution Gun Works lineup, part of our scope accessories selection, at our Lubbock, Texas gun shop for fast, direct shipping.