3
windage turret to the center of the bolt is an easy way to find Bore Height (just need to be
accurate to within ¼”).
RT – Rifle Twist. This is the distance along the barrel it takes for the rifling to complete one
rotation. If the Rifle twist is not known, it can be measured by pushing a tight fitting patch
through the barrel and measuring the distance required for the cleaning rod to make one full
rotation. RTd is the rifle twist direction and can be changed by highlighting RT and pressing the
center button. The vast majority of rifles have a right twist (clockwise from the position of the
shooter).
Eunit/Wunit – Elevation / Windage Unit. These are the units of measure used in the elevation
and windage turrets of the scope.
1) MIL – Miliradian
2) TMOA – True Minute of Angle (typically written as MOA) where 1 MOA equals
1.047” at 100 yards.
3) SMOA – Shooter’s Minute of Angle. This is less frequently used but 1 MOA equals
exactly 1 inch at 100 yards.
4) Clck– A user settable value representing the angle adjustment made by each “click”
or detent of the turret when turned.
5) Inch - A straightfoward method of determining drop based on the amount of inches
the bullet drops.
6) CM - A straightfoward method of determining drop based on the amount of
centimeters the bullet drops.
Eclck/Wclck – Elevation/Windage Click Setting. If Euint or Wunit are set to clik, the Kestrel will
provide solutions indicating the number of “clicks” the turret needs to be turned to dial the
solution. The percent of a full Mil or MOA represented by each “click” of the turret must be set
by the user. For example, if you know your turret is 1 click per 1/4 MOA, set the Eunit/Wunit to
clicks and set the Eclck/Wclck to 4/MOA. This means every 4 clicks equals 1 MOA or 1 click = 1/4
MOA.
6) Capture Target Information.
On the main Ballistics screen, scroll to Tgt…. and press select. Input information about each of
the following target variables.
a) TR – Target Range. This is the line of sight range to the target. Use the left and right
arrow to adjust the value.
b) DoF – Direction of Fire. Measured in degrees or hours from North, this value can be
manually inputted or captured automatically.
i. Capturing Direction of Fire – To capture DoF automatically, enter the
DoF submenu and select Capture. While pointing the back of the
Kestrel towards the target and holding the Kestrel vertically, press the
select button.
c) Ideg – Inclination angle is the angle above or below the horizon to the target.