Quick Answer
To zero a red dot sight for close-range shots, set the sight to 25-50 yards, then fire three shots at a target at 25 yards. Use the impact points to adjust the elevation and windage adjustments. Repeat the process until the red dot is centered on the target.
Setting Up for Zeroing
Before you begin, make sure your rifle is zeroed at 100 yards with a traditional iron sight or scope. This will give you a reference point for your red dot sight. Use a target with a center dot, preferably at 25 yards, to simplify the process.
Adjusting for Zero
Start by setting the red dot sight to 25 yards, and fire three shots at the target. Measure the impact points, and adjust the elevation and windage adjustments accordingly. For a deer rifle, a 1-2 MOA (minute of angle) adjustment at 25 yards is equivalent to a 1-2 inch adjustment at 100 yards. Repeat the process until the red dot is centered on the target. It’s essential to use a consistent shooting position and maintain a steady aim throughout the zeroing process.
Fine-Tuning and Verification
Once you’ve achieved a close-range zero, verify the accuracy by firing a few shots at longer distances, such as 50 or 75 yards. Make any necessary adjustments to fine-tune the zero. Keep in mind that the red dot sight’s zero may drift slightly with temperature changes or over time, so it’s crucial to re-zero the sight periodically to maintain accuracy.
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