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MOA Formula:
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MOA (Minute of Angle) is an angular measurement used in long-range shooting to make precise adjustments to firearm sights. One MOA equals approximately 1 inch at 100 yards, with the measurement increasing proportionally with distance.
The calculator uses the MOA formula:
Where:
Explanation: This formula calculates the minute of angle adjustment needed to correct for bullet impact deviation at a specific distance.
Details: Accurate MOA calculation is essential for precision shooting, allowing marksmen to make precise scope adjustments to account for bullet drop, windage, and other environmental factors at varying distances.
Tips: Enter the deviation measurement in inches and the distance to target in yards. Both values must be positive numbers greater than zero for accurate calculation.
Q1: Why is MOA used instead of other measurements?
A: MOA provides a consistent angular measurement that scales with distance, making it ideal for precision shooting adjustments at various ranges.
Q2: How precise is MOA adjustment?
A: Most quality rifle scopes offer 1/4 MOA adjustments, allowing for very precise targeting corrections of approximately 1/4 inch at 100 yards.
Q3: Does MOA work with metric measurements?
A: While MOA is traditionally used with imperial units, conversions can be made (1 inch = 2.54 cm, 1 yard = 0.9144 meters) for use with metric measurements.
Q4: How does atmospheric conditions affect MOA calculations?
A: Temperature, altitude, and humidity can affect bullet trajectory, potentially requiring additional adjustments beyond basic MOA calculations.
Q5: Is MOA the same as MIL (milliradian)?
A: No, MIL is a different angular measurement system where 1 MIL equals 3.6 inches at 100 yards. Both systems are used in precision shooting but require different calculations.