Vortex Optics RAZOR HD GEN II 4.5-27X56 RIFLESCOPE - Manual (Page 5)

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6.7 mrad correction for 800-yard shot. No wind.
Example
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.
Since the EBR-1C reticle is scaled in mrads, it is an easy job to
quickly select the correct drop reference line once the shooter
knows their bullet drops and windage/lead corrections in mrads.
If the shooter prefers to dial come ups for bullet drop using the
elevation knob, knowing bullet drops in mrads will allow for
much faster adjustments as the mrads can be quickly read on the
elevation knob.