"BRITISH" METHOD FOR WIND CORRECTIONS

BASIC WIND TABLE

BASIC WIND TABLE IS BASED ON FULL VALUE 15 MPH WIND.

RANGE

  100

   200

  300

  400

  500

  600

  700

  800

  900

  1000

MOA

    1

    2

    3

     4

     5  

    6

     7

    8    

    9

    10

Light Wind (3 mph) 1/4 of Basic.

Medium Wind (7 mph) 1/2 of Basic.

Heavy Wind (15 mph) Use basic value.

 


    DEVIATION FROM ZERO*           

                    

     VARIABLE

     CHANGE

                      CORRECTION

 TEMPERATURE

 

 @ 300m

@ 600m

 @ 1000m

+30 deg or more

-2 MOA.

-3 MOA

-4 MOA.

+20 deg

-1 MOA

-1.5 MOA

-2 MOA

-20deg

+1 MOA

+1.5 MOA

+2 MOA

-30 deg or more

+2 MOA

+3 MOA.

+4 MOA.

   HUMIDITY

        +20%

       Add 1 MOA elevation.

        -20%

       Drop 1 MOA elevation.

* General trends. Your data book is your best source of information.

 

 

Tables