Leupold RX-1600i TBR/W Complete Operating Instructions page 17

For rifle users, scope adjustment or holdover information can also be displayed .
The available settings are as follows: BAS outputs the equivalent horizontal range,
HOLD displays the inches or centimeters (depending on unit of measure selected)
to holdover the intended point of impact, MIL displays the number of milliradians
to holdover the intended point of impact and MOA displays the minute of angle
correction . TBR for rifle settings is effective to 800 yards for
most cartridges . For rifle users, TBR mode is comprised of
five functions: BAS, HOLD, MIL, MOA and TRIG . One of these
modes must be selected . To select the desired function, rotate
through the output until TBR is reached (activate if necessary) .
While the TBR icon is highlighted and the word "SEt" is shown
in the upper display, pressing POWER repeatedly will scroll through BAS, HOLD,
MIL, MOA and TRIG respectively; press MODE when the desired function is
displayed . For information regarding BOW settings, please see page 17 .
BAS displays the equivalent horizontal range, which is based upon the ballistics
group and sight-in distance you will choose in a later mode .
This is the range you will want to use when shooting, rather
than the line of sight distance, which may contain gross errors
depending upon the shot angle . Readings will be displayed with
equivalent horizontal range in the lower portion of the display .
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