The EGW Winchester 70 Pre '64 Standard/Long Action 20 MOA scope base transforms your classic Winchester into a modern optics platform without permanent modifications. This one-piece Picatinny rail mounts directly to your rifle's factory receiver holes, eliminating the need for drilling and tapping—a huge advantage if you want to preserve the integrity of a vintage or collector-grade rifle. The 20 MOA built-in elevation angle puts you in the ballpark for extended-range shooting right out of the box, whether you're dialing for long-distance hunting or precision rifle work.
Built from 6061 T6 aluminum extrusion and machined to MIL-STD 1913 Picatinny specifications, this base gives you genuine flexibility in scope selection and eye relief adjustment. The milled-out center channel keeps weight down without compromising rigidity—a smart detail for a rifle you'll carry into the field. The full-width cross-slots are gauged to industry standard tolerances (±.002"), so your scope rings will seat consistently and securely.
Installation is straightforward: the base uses socket head Torx screws that thread into your receiver's existing mounting holes. EGW supplies the wrench you need, and they recommend 20 inch-pounds of torque plus a touch of blue Loctite to lock everything down. If you're hunting, target shooting, or just want to modernize a Pre-'64 Model 70 without drilling, this base delivers a clean, reversible upgrade.
Key Features
- One-piece Picatinny rail—no gunsmithing required
- Fits factory receiver holes on Pre-'64 Winchester Model 70 Standard and Long Action
- 20 MOA built-in elevation for extended-range shooting
- 6061 T6 aluminum construction with milled center channel for weight savings
- MIL-STD 1913 Picatinny slots gauged to ±.002" tolerance
- Socket head Torx mounting screws with included wrench
Specifications
| Brand | EGW |
| Rifle Model | Winchester 70 Pre-'64 Standard/Long Action |
| Mount Type | One-piece Picatinny rail |
| Elevation Offset | 20 MOA |
| Material | 6061 T6 aluminum |
| Picatinny Slot Tolerance | ±.002" |
| Fasteners | Socket head Torx screws |
| Recommended Torque | 20 inch-pounds |
Frequently Asked Questions
Will this base fit my Pre-'64 Winchester Model 70?
Yes, this EGW base is engineered for Pre-'64 Winchester Model 70 rifles in both Standard and Long Action. It uses your rifle's existing factory receiver holes, so no drilling or tapping is needed.
What does 20 MOA elevation mean, and do I need it?
The base incorporates 20 MOA of built-in upward angle at the rear. This gives you extra elevation adjustment range without having to dial your scope turret as far—helpful for longer-range shooting. If you're hunting at typical hunting distances, you may not use all of it, but it's there if you need it.
Can I use any Picatinny scope ring with this base?
Yes. The base is machined to MIL-STD 1913 Picatinny specifications, so it works with any standard Picatinny-compatible scope ring. This gives you flexibility to choose rings and scopes based on your accuracy and eye relief preferences.
What comes with the base, and how do I install it?
The base includes socket head Torx mounting screws and a wrench. Installation involves threading the screws into your receiver's existing holes. EGW recommends torquing to 20 inch-pounds and applying a small amount of blue Loctite to secure them permanently.
