This known muzzle velocity is also the velocity that should be input in the Muzzle Velocity required below. The Baseline Temperature is the temperature at which a known muzzle velocity was produced. Either input will also ask for a Baseline Temperature. If selected the input allows the use of a Selected Powder TSF or a Custom TSF. This is an optional input and does not have to be used. This option allows 4DOF ® to compensate for changes in muzzle velocity because of temperature changes. You DO NOT specify a BC (this calculator uses a Drag Coefficient and doesn’t use BC). When you do this you are picking a file that contains all the projectile specific information needed to run the 4DOF ® simulation. Pick a projectile from the projectile library. Standard units are SAE units (inches, yards, etc.)Ĭhoose from MOA (Minutes Of Angle, this is true moa 1.047” at 100 yards), MRADS (Milliradians), Inches or Centimeters.Before you begin, the inputs you must have at your disposal include:Ĭhoose from either Standard or Metric (affects ALL inputs and outputs). The essential gun-related inputs are explained below.
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