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BL – Bullet Length is the length of the bullet measured in
inches or millimeters. Automatically calculated from bullet
weight. May be overriden if actual bullet length is known.
ZR – Zero Range is the distance from the muzzle to the target
at which the rifle was zeroed.
BH – Bore Hight (Scope Height) is the distance from the
center axis of the rifle barrel to the center axis of the scope.
This can be measured from the top of the bolt to the middle
of the windage turret plus half the diameter of the bolt.
ZH –Zero Height is an adjustment designed to account for
temporary changes to your gun setup that shift the point of
impact in a vertical direction. Examples include the addition
of a suppressor, night vision optic or change in load. For
example, if adding a suppressor changes the point of impact
by shifting it down 2 inches at your Zero Range, set ZH to
-2. When the suppressor is removed, simply reset ZH to 0. A
change in point of impact up is positive, down is negative.
(Not available in Sportsman models)
ZO – Zero Offset is the same as Zero Height but for the
horizontal direction. If adding a suppressor changes the
point of impact by shifting it left 1 inch at your Zero Range,
set ZO to -1 in. A change in point of impact to the right is
positive, left is negative. (Not available in Sportsman models)
RT – Rifle Twist is the distance it takes for the rifling of your
barrel to make one full rotation. RT is often provided by
the gun or barrel manufacturer. It an also be measured
by marking a tight fitting cleaning rod and measuring the
insertion distance required to make one full rotation.
RTd – Rifle Twist Direction is the rotational direction
of the rifle twist. A right hand twist (most common) is
clockwise from behind the rifle.
Eunit – Elevation Unit is the unit of measure used in a
scope and reticle for elevation, either TMOA, SMOA, or
Mil.
Eclck – Elevation Clicks is a user settable ratio of number
of clicks of the elevation turret per TMOA, SMOA, or Mil.
Wunit – Windage Unit is the unit of measure used in a
scope and reticle for windage, either TMOA, SMOA, or
Mil.
Wclck – Windage Clicks is a user settable ratio of number
of clicks of the windage turret per TMOA, SMOA, or Mil.
DSF – Drop Scale Factor is a truing value of the ballistic
coefficient applied at transonic and subsonic speeds.
(Not available in Sportsman models)
TMOA – True Minute Of Angle is a measure of one actual
minute of angle. 1 TMOA = 1.047” at 100 yards. Most
MOA scopes are TMOA.
SMOA – Shooters Minute Of Angle is a simplified
approximation of one minute of angle where 1 SMOA =
1” at 100 yards.
Mil – Milliradian is a measure of angle using the USMC
definition of 6283 mils = 1 circle, or 1 mil = 3.438 MOA.
CLIK – Click is the value of each click of the turret where
the user selects the number of clicks equal one TMOA,
SMOA, or Mil, based on the turrets of their scope.
GUN MENU CONT’D
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