The EGW Howa 1500/Weatherby Vanguard Short Action 20 MOA scope base is a precision-machined one-piece Picatinny rail built for shooters who demand repeatability and flexibility in their long-range setup. If you're running a Howa 1500 or Weatherby Vanguard short-action rifle and want to dial in a scope with confidence, this heavy-duty base gives you the rigid foundation that matters—especially on the range or in the field when shots count.
Built from 7075 T6 aluminum and drilled to fit your rifle's factory receiver holes, the EGW base accepts either Picatinny or Weaver scope rings, so you're not locked into one ring brand. The 20 MOA slope is pre-machined into the base, letting you dial elevation correction into the base itself rather than burning through your turrets on distant targets. The heavy-duty profile sits 0.100" lower than lightweight alternatives, keeping your scope closer to bore centerline for a lower center of gravity and cleaner sight picture. Picatinny slots are gauged to MIL-STD 1913 spec (±0.002"), which means fast, precise mounting every time and the confidence to swap rings or optics without chasing zero.
Installation is straightforward: the base uses your existing drilled holes, includes socket head Torx screws and wrench, and EGW recommends 20 inch-pounds of torque with a drop of blue Loctite for security. Whether you're building a long-range hunter, a precision rifle, or a dedicated range gun, this base gives you the adjustability and rock-solid stability that lets your rifle and optic work as a system.
Key Features
- One-piece Picatinny rail with 20 MOA built-in slope for extended-range elevation correction
- Accepts Picatinny or Weaver scope rings for maximum mounting flexibility
- Machined from 7075 T6 extruded aluminum for rigidity and durability
- Heavy-duty profile positions scope 0.100" lower to minimize height and improve accuracy
- Picatinny slots gauged to MIL-STD 1913 ±0.002" for precision fit and repeatability
- Drilled to fit Howa 1500 and Weatherby Vanguard short-action factory receiver holes
- Includes socket head Torx screws and wrench; recommended torque 20 inch-pounds with blue Loctite
Specifications
| Brand | EGW |
| Rifle Fit | Howa 1500 / Weatherby Vanguard Short Action |
| Mount Type | One-piece Picatinny rail base |
| MOA Slope | 20 MOA |
| Ring Compatibility | Picatinny or Weaver scope rings |
| Material | 7075 T6 extruded aluminum |
| Profile | Heavy-duty (0.100" lower than lightweight) |
| Picatinny Spec | MIL-STD 1913 ±0.002" |
| Fasteners Included | Socket head Torx screws and wrench |
| Recommended Torque | 20 inch-pounds with blue Loctite |
Frequently Asked Questions
Does this 20 MOA base fit my Howa 1500 or Weatherby Vanguard?
Yes, this EGW base is drilled specifically to match the factory receiver holes on Howa 1500 and Weatherby Vanguard short-action rifles. Install is a direct bolt-on using your existing holes.
What's the difference between heavy-duty and lightweight mounts?
The heavy-duty version sits 0.100" lower than lightweight mounts, positioning your scope closer to the barrel centerline. This lower height improves accuracy and provides a better sight picture while maintaining full rigidity.
What scope rings do I need?
This Picatinny base accepts both Picatinny-slot and Weaver-style scope rings, giving you flexibility in ring choice and allowing simple optic changes without losing your base alignment.
Why does a 20 MOA slope matter?
The 20 MOA slope is pre-machined into the base to tilt your scope for extended-range shooting. This lets you dial elevation correction into the base, preserving your turret adjustment range for actual shots rather than using it all for baseline correction at distance.

