April 15, 2026 gunsmithing scopes guide

Walk into any gun shop and you'll see it — somebody's brought in a $1,200 rifle with a high-dollar scope that won't hold zero. They've already tried two sets of rings and a new scope base. They're convinced the rifle is defective. Nine times out of ten, it's not the rifle and it's not the scope. It's everything in between. Scope mounting is a skill, and when it's done right, your zero will stay put through recoil, cold, heat, and the back of a pickup truck.

The first thing that matters is torque. Every manufacturer publishes a spec for their rings and bases — usually somewhere between 15 and 65 inch-pounds depending on the design. Most guys tighten by feel, which means they either strip threads or leave things loose enough to shift. A quality inch-pound torque wrench costs about $30 and eliminates both problems. I torque in three stages: snug all four screws fingertight, bring them to half-spec in an X-pattern, then full spec in the same pattern. That ensures even clamping pressure across the tube.

Second is leveling. A canted scope doesn't just look wrong — it introduces a lean that causes your shots to drift horizontally at distance. At 100 yards you might not notice. At 300, you're missing to one side and blaming your hold. I use a bubble level on the action and a separate level on the scope's turret cap to get them matched before I snug anything down. Takes five minutes. Saves a lot of confusion at the range.

Third, and most overlooked, is lapping. Even premium rings don't contact the scope tube evenly out of the box. Lapping — running an aluminum rod coated with lapping compound through the mounted rings — removes high spots and creates full, even contact along the entire ring surface. This is what separates a mount that'll still be zeroed after a Kansas dove season from one that'll move on you. If you're mounting anything above $300 onto a rifle you plan to actually hunt with, it's worth doing right. Bring it in and we'll handle it.