Vortex Optics VIPER PST 2.5-10X32 FFP RIFLESCOPE - Manual (Page 6)

RIFLESCO PE
11 10
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
10 mph wind
Full value wind at 90 degrees
Example