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.
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).
Ranging Mrad reticles are very effective for ranging using simple formulas: Mrad Ranging Formulas Example Target Size (Yards) x 1000 = MRADs Read Target Size (Meters) x 1000 Range (Yards) = Range (Meters) = Range (Yards) MRADs Read Target Size (Inches) x 27.8 MRADs Read To use these formulas, you will need to know the measured size of the target or a nearby object.
Elevation Holdovers Once the distance has been calculated using the EBR-1C MRAD reticle or a laser rangefinder, the EBR-1C can be used for rapid holdover correction for bullet drop of the cartridge being used. To get the most benefit out of the EBR-1C equipped riflescope, Vortex Optics highly recommends shooters learn their bullet drop numbers in mrads rather than inches or MOAs.
Windage and Moving Targets The EBR-1C reticle is highly effective when used for wind and moving target leads. Using the reticle for windage and moving leads will require thorough knowledge of your weapon system’s ballistic performance under varying conditions and experience in reading wind strengths and target speeds. As in bullet drops, it is imperative the shooter learn the particular weapon’s windage/moving target corrections in mrads rather than inches or MOAs.
Basic windage correction using drop line on reticle Basic moving lead correction When using the reticle for elevation correction rather than dialing, the mrad marks on the center horizontal crosshair can still be used to help visually reference windage corrections. When estimating moving target leads, the mrad marks on the center horizontal crosshair can be used.
The VIP Warranty We build optics based on our commitment to your absolute satisfaction. That’s why Vortex products are unconditionally guaranteed and we make this Very Important Promise to you—a Very Important Person. Rest assured that in the event your Razor HD Gen II becomes damaged or defective, Vortex Optics will repair or replace the riflescope at no charge to you. Call Vortex Optics at 800-426-0048 for prompt, professional, and friendly service.
