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Table of Contents
Using this calculator
The project objectives of this calculator are:
- Simplicity.
- Flexibility.
- Ease of use on a variety of platforms.
- Mathematical accuracy.Â
What this project does not take into account:
- The properties of an external ballistic calculator.
This therefore excludes calculations of:
- Projectile mass.
- Bullet drag coefficients.
- Atmospheric density.
- Lift.
- Spin drift.
- Magnus effect.
- Gravity variation.
- Target movement.
- Transonics.
- Precipitation.
- Temperature (including propellant temperature).
- Muzzle velocity.
- Coriolis effect.
- Eötvös effect.
- Planetary axis deviation.
- Tailwind, crosswind and headwind components.
- Slope inclination.
- Height of sight above the bore centerline.
MOA Calculator with Range Card - Guide
First page
1. Yards or Meters selector
The range to the target measured in yards or meters.
2. Range slider
Set the range to the target with the slide or Range input box.
3. Range Input Box
Set the range to the target with the Range input box or Range Slider.
4. MOA in Inches
The MOA of the selected range in inches. (Does not take into account the Zero Range set in Scope Settings).
5. MOA In mm
The MOA of the selected range in millimeters. (Does not take into account the Zero Range set in Scope Settings).
6. Turret clicks to adjust
The clicks required to adjust onto target. (Set your scope parameters in Scope Settings).
Scope Settings
1. Scope Zero Range
The range that the rifle and scope has been zeroed at, measured in yards or meters.
2. Calibration
Some scopes are calibrated at manufacture so that an MOA on the scope represents a Shooters Minute of Angle (SMOA) or Inch Per Hundred Yards (IPHY).
For example:
- one MOA at 100 yards = 1.047 inches
- one SMOA at 100 yards = 1.0 inch
3. Scope MOA per click
Sets the amount of MOA that is adjusted per click of the turret.
Range Card
1. Print Function
This function allows printing of the Range Card. Results may vary with different devices and platforms.
2. Range Card Distance
Sets the distance that the Range Card covers. From 100 to 2000 yards or meters.
3. Results
The displayed results at the chosen ranges.
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