Leupold RX-1400i TBR/W Complete Operating Instructions page 16

FUNCTION 1: TBR, BOW, OR LOS
To activate TBR, BOW, or LOS mode, press the POWER button,
then press the MODE button for <1 second and release to enter
the menu . While "Out Put" is shown in the display, press and
release the POWER button to rotate through TBR, BOW, and LOS
modes . Once the desired mode is displayed, press the MODE
button .
TBR FOR RIFLE USERS (TBR/W models only)
TBR calculates the equivalent horizontal range (level fire range)
from which you can determine the correct aim for the conditions .
For example, if you are shooting a .270 caliber, 130 grain bullet at
3,050 feet per second up a 30° incline at 400 yards, direct line
of sight, the TBR output will be 367 yards . Anytime you handle a
firearm or bow, you are ultimately responsible for your projectile .
For rifle users, scope adjustment or holdover information can
also be displayed . The available settings are as follows: BAS
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