Quick Answer
For new tactical hunters, zeroing a rifle involves setting the sights to accurately hit a target at a specific distance, typically 100 yards, and should be done in a controlled environment with a reliable spotting scope or optic.
Zeroing Process
Zeroing your rifle starts with choosing a suitable target, such as a 100-yard shooting range or a designated zeroing area. Begin at 100 yards and shoot five rounds at a consistent point of aim. Measure the bullet drop using a spotting scope or a ballistic reticle in your optic, adjusting for windage and elevation as needed.
Use a mil-dot or MOA reticle to make precise adjustments. Aim for a 1-2 inch group at 100 yards and refine your zero from there. Typically, a full MOA adjustment at 100 yards is equivalent to a 1-inch change in bullet impact at 100 yards, and a 3.6-inch change at 300 yards.
Ballistic Corrections
Consider ballistic corrections for the type of ammunition and rifle you’re using. For an AR-15 with a 5.56mm round, at 400 yards, there’s approximately 24 inches of bullet drop. Ballistic calculators can provide accurate elevation adjustments based on your rifle, bullet type, and environmental conditions. Use this data to make informed adjustments and fine-tune your zero.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.