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This is EGW's Heavy Duty scope base built specifically for the Winchester Model 70 pre-64 standard action and post-64 long action. It replaces the two-piece factory base setup with a single continuous rail, which means one solid platform for your rings instead of two separate points that can drift out of line. Bolt it to the factory-drilled receiver holes, torque it down, and you have a mounting surface that keeps your optic locked in shot after shot.
The HD designation is the real story here. It's machined from solid 7075 T6 aircraft-grade aluminum, the strongest common aluminum EGW uses, so it's the base to reach for if you shoot a magnum caliber, log a lot of range time, or pack your rifle into rough backcountry. The HD profile also sits about a tenth of an inch lower than the lightweight version, which keeps your scope closer to the bore centerline for a cleaner cheek weld and better consistency.
The cross-slots run the entire length of the rail and are cut to MIL-STD 1913 specs, held to within a couple thousandths. That gives you real flexibility to slide your rings forward or back until the eye relief feels right, and it takes any standard Picatinny or Weaver ring you already own. A milled center channel trims weight without giving up rigidity, so you get the strength of 7075 without turning your hunting rifle into a boat anchor.
This is the 0 MOA version, meaning the rail sits flat and parallel to the bore with no built-in cant. For most hunting and general range work inside 500 to 600 yards, flat is exactly what you want since it keeps your scope near the center of its adjustment range for fast, easy zeroing. If you're planning to dial way out past that regularly, the 20 MOA version is the one to look at instead. Matte black anodizing rounds it out, and Torx mounting screws plus the wrench come in the box.
It's made for the Model 70 pre-64 standard action and the post-64 long action, and it bolts to the factory-drilled receiver holes. If you have a short action, WSM, or WSSM Model 70, you'll need a different EGW rail cut for that footprint. One note worth knowing: the Model 70 Coyote edition in .243 actually takes the WSM mount, not this one.
The HD is machined from 7075 T6 aluminum, which is stiffer and stronger than the 6061 T6 used on the standard-duty rails. It also sits roughly .100" lower to keep your scope closer to the bore. Go HD if you shoot magnums, spend serious time at the range, or want maximum rigidity for a heavy optic.
The 0 MOA base is flat with no cant, which keeps your scope near the middle of its adjustment range and makes zeroing quick and simple. It's the right pick for hunting and range work inside about 500 to 600 yards. If you plan to dial for distance well past that on a regular basis, go with the 20 MOA instead to preserve more of your scope's internal elevation.
No, the rail is cut to true MIL-STD 1913 spec, so it accepts any standard Picatinny or Weaver-style rings. The full-length cross-slots let you position the rings wherever your eye relief lands. When you install it, EGW recommends around 20 inch-pounds of torque on the screws with a drop of blue threadlocker to keep everything put.
| UPC | 841370109166 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 80600 |
| Action | |
| Color | Black |
| Model | |
| Style | Picatinny Rail |
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