Levels The Rifle Not the Scope
Improves accuracy by ensuring the rifle is level before each shot.
Even the smallest amount of cant will move bullet strike by 1/2 an
inch or more at 100 yards: results in missed targets or wounded
game. Attaches directly to a scope base, remains visible to your
non-sighting eye so you can quickly check the level without moving
your eye from the target. Fits Weaver-style base.
Big Book Catalog, Issue:66, Page:274
New Product Supplement, Issue:581, Page:017
SPECS: Aluminum, black, anodized finish. 1.8" (47mm)