Vortex Optics VIPER PST 1-4X24 RIFLESCOPE - Manual (Page 7)

RIFLESCO PE
13 12
The TMCQ MOA reticle can also be 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 their particular weapon’s windage/moving target
corrections in MOAs rather than inches.
Windage and Moving Targets
9 MOA windage correction for 5.56 mm in 15 mph crosswind
at 400 yards. Elevation correction dialed into turret.
8 MOA holdover and 9 MOA windage correction for
5.56 mm in 15 mph crosswind at 400 yards.
Whether dialing elevation come ups or using the reticle subtensions for
holdover, the center horizontal crosshair can be used for windage or
moving lead corrections. MOA marks on the horizontal crosshair are
graduated in 2 MOA increments.
Example
Reticle Correction for Wind with Elevation Correction Dialed into Turret
Example
Reticle Correction for Both Elevation and Wind
15 mph crosswind
15 mph crosswind