Vortex Optics VIPER PST 6-24X50 RIFLESCOPE - Manual (Page 6)

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RIFLESCO PE
Windage and Moving Targets
The EBR-1 MOA reticle is highly effective when used for wind
and moving target leads. Using the reticle for effective windage
and moving target leads will require thorough knowledge of your
weapons system’s ballistic performance under varying conditions
and experience in reading wind strengths and target speeds. As
in bullet drops, it is important for the shooter to learn a particular
weapon’s windage/moving target corrections in MOAs rather than
inches. Always hold the reticle into the wind.
3 MOA reticle windage correction at 400 yards in 10 mph crosswind using
center crosshair. Elevation adjustment already dialed into the riflescope.
When dialing elevation come ups, the center horizontal crosshair
will be used for windage or moving lead corrections.
Basic windage correction on center crosshair
Example
10 mph wind
Full value wind at 90 degrees