Vortex Optics RAZOR HD GEN II 4.5-27X56 RIFLESCOPE User Manual
The Vortex® EBR-1C MRAD Reticle
Designed to maximize long-distance shooting and ranging abilities,
the EBR-1C MRAD reticle can be used to effectively determine ranges,
holdovers, windage corrections and moving target leads. Ultra-precision
laser etching on the glass reticle ensures that MRAD specifications
are kept to the tightest tolerances possible. The fine center crosshair
subtensions on the EBR-1C MRAD reticle were carefully chosen to
provide the optimum balance between precision aiming and low light
vi s ibility.
Dual Use: Shooting Tactical / Hunting
Note: Reticle images shown in this manual are for representation
only—images vary between scope models depending on magnification
and reticle plane.
— Please read entire manual before using your new optic.
3 2
MRAD Subtensions
The EBR-1C MRAD reticle is based on the milliradian, or mrad for
short. Mrad unit of arc measurements are based on the radian. A
radian is the angle subtended at the center of a circle by an arc that
is equal in length to the radius of the circle. There are 6.283 radians
in a circle and 1000 milliradians in a radian for a total of 6,283
milliradians (mrads) in a circle. An mrad will subtend 3.6 inches at a
distance of 100 yards (10 cm at a 100 meters). Most riflescopes with
mrad adjustments use .1 mrad clicks which subtend .36 inches at 100
yards (1 cm at a 100 meters).
Reticle Subtensions
.03
.4
.2
In the Razor HD Gen II first focal plane riflescopes, the listed mrad
subtensions of the EBR-1C reticle are valid at all magnification
levels. This means the shooter can use the magnification level most
appropriate for the situation and still have effective holdover and
windage reference marks. This is also extremely valuable in a highstress situation, as the shooter does not have to remember to set the
scope to one particular magnification to get valid holdovers—an
action necessary with the more common second focal plane reticles.
.6
11
9.1
.5
5 4
.1
1
Loading...