Quick Answer
Maintaining zero after mounting a new scope requires attention to detail, patience, and the right techniques. This involves setting the scope's windage and elevation adjustments properly, shooting a series of groups to verify accuracy, and making necessary adjustments. With practice, you'll achieve a consistent zero.
Setting the Scope’s Bases and Rings
When mounting a new scope, ensure that the bases and rings are properly aligned and tightened in accordance with the manufacturer’s instructions. Make sure the scope’s reticle is centered and the adjustment knobs are accessible. Use a torque wrench to tighten the scope rings, typically between 20-30 inch-pounds, to prevent damage to the scope or action.
Shooting a Series of Groups
To verify accuracy after mounting the new scope, shoot a series of groups at 100 yards using a consistent load and firing position. Start with a small group size, ideally less than 1.5 inches, and then make adjustments to the windage and elevation knobs in increments of 1/4 to 1/2 MOA. Verify accuracy after each adjustment by shooting another group.
Final Adjustments and Verification
After making adjustments, shoot a final group to verify accuracy. If necessary, make further adjustments in small increments until you achieve a consistent group size of less than 1 inch. To confirm that you’ve achieved a zero, shoot at a target at 200 or 300 yards and verify that your shots are grouping together tightly.
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