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 visibility.
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Note: Reticle images shown in this manual are for representation |
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only—images vary between scope models depending on magnification |
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and reticle plane. |
Dual Use: Shooting Tactical / Hunting |
— Please read entire manual before using your new optic. |
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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).
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.
Reticle Subtensions |
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