OPERATING INSTRUCTIONS
™
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 1
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 4
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 5
Cleaning/Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 32
Helpful Hints for Using the Leupold
RX Digital Laser Rangefinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 33
Warranty/Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 36
Table of Contents
Congratulations! You have purchased a Leupold RX™ Series digital laser
rangefinder that has been designed by Leupold’s engineers and designers
to be the best rangefinder on the market and to provide you with years of
solid performance in the field. Following are detailed instructions regarding
the proper use and employment of your RX Series rangefinder. To ensure top
performance for the life of the product, please read these instructions before
operating your RX-I, RX-II, RX-III, or RX-IV.
Your new Leupold RX Series digital laser rangefinder is a revolutionary, range-
finding device that incorporates advanced digital electronics with state-of-
the-art ballistic algorithms. True Ballistic Range
™
algorithms were developed
by the same engineers who developed Sierra Infinity
®
Exterior Ballistics
Software and who helped develop navigation and guidance systems for ICBMs
and other missiles with far more demanding trajectory requirements than a
hunting bullet. Other useful features that are included are an inclinometer,
thermometer, compass, and the Match 13
™
Reticle System™, but the truly
Introduction
1
innovative and unique feature is True Ballistic Range (TBR™), which is available
on RX-II, RX-III, and RX-IV models.
True Ballistic Range (TBR) is a marriage of laser ranging, inclinometer, and an
advanced computerized ballistics program. The result is distance measuring
precise within a yard, no matter the angle at which the laser is fired.
Bullets
and arrows travel in a ballistic arc, yet conventional rangefinders only provide
a linear distance to your target. True Ballistic Range delivers the ballistically
equivalent range to the target, accounting for the effects of inclines (either up
or down) on the path of your bullet or arrow. Other features that are provided
for firearms are outputs that display either MOA adjustments, or inches/
centimeters of holdover at that specific distance. True Ballistic Range eliminates
any potentially significant error, and provides a precise range for your aiming
calculations.
TBR is matched to each of seven firearm ballistic groups and three
archery ballistic groups, allowing use with most popular firearms and bows.
The ranging accuracy of all Leupold RX Series rangefinders is +/- one yard/meter.
The maximum range of the unit depends on the reflectivity of the target (as
do all rangefinders). Below is a reference table listing the ranges of the various
models under different conditions: (see page below)
2
3
Surface texture, color, size and shape of the target all affect the reflectivity,
which in turn affects the maximum range of the instrument, to some degree.
As a rule of thumb, brightly colored targets are much more reflective than
darker targets. Tan game coats are more reflective (and thus provide a more
solid reading) than a black roof. A shiny surface is more reflective than a dull
surface. Smaller targets are more difficult to range than larger targets. Light
conditions, haze, fog, rain, and other environmental conditions can all affect
ranging performance. Any factor which degrades air clarity is a negative to
making the rangefinder work to the longest practical distances.
MAXIMUM RANGE
CONDITION RX-I RX-II RX-III RX-IV
R
eflective Target (yd) 750 750 1200 1500
T
rees (yd) 600 600 800 900
D
eer (yd) 500 500 700 800
Specifications
RX-I RX-II RX-III RX-IV
Magnification 6× 6× 8× 8×
Inclinometer No Yes Yes Yes
TBR (True Ballistic Range) No Yes Yes Yes
Match 13
™
Reticle System
™
Yes Yes Yes Yes
Quick Set Rotary Menu
™
Yes Yes Yes Yes
Long Range Mode Yes Yes Yes Yes
Rain Mode No Yes Yes Yes
1
st
Target Mode No Yes Yes Yes
Last Target Mode No Yes Yes Yes
Line of Sight Distance (LOS) Yes Yes Yes Yes
Compass With Declination Setting No No No Yes
Compass With Tilt Compensation No No No Yes
Thermometer ºC to ºF Yes Yes Yes Yes
Yards/Feet/Meters Mode Yes Yes Yes Yes
Scan Mode Yes Yes Yes Yes
Illuminated Display No No Yes Yes
Clear Field
™
Display Cleanup Mode Yes Yes Yes Yes
Battery Life 2000 Actuations 2000 Actuations 2000 Actuations 2000 Actuations
Weight 6.8 oz 6.8 oz 12 oz 12 oz
Dimension (Inches) 4.2" × 3" × 1.75" 4.2" × 3" × 1.75" 4.8" × 3.5" × 2" 4.8" × 3.5" × 2"
Low Battery Indicator Yes Yes Yes Yes
Warranty 1 Year 1 Year 2 Years 2 Years
Weatherproof/Waterproof Weatherproof Weatherproof Waterproof Waterproof
The RX Series of digital laser rangefinders provides a variety of useful modes to
tailor performance to the conditions you experience in the field. The particular
models that feature each mode are identified on the following page.
4
QUICK SET ROTARY MENU
™
*Display shown with all possible modes visible
Operation
5
-/+
RX-I
-/+
RX-I
RX™-I & RX™-II RX™-III & RX™-IV
Power
Mode
Focus
Set Mode
Power
Focus
The RX-I and RX-II have two buttons: Power and Mode. The RX-III and RX-IV
have three buttons: Power, Mode, and Set.
Battery
Battery
6
7
When you initially push the Power button, the unit is ready for scanning. When
you first press the Mode button, the Quick Set Rotary Menu™ is prepared for
navigation. To set or activate a function, you must advance the mode selector
to that function by pressing the Mode button until that function is flashing by
itself. To lock in that function, press the Set button if using a RX-III or RX-IV;
press the Power button if using a RX-I or RX-II.
NOTE:
Activating certain modes automatically disables other modes. For
example, 1st Target and Last Target Mode work in an opposite way, so when
one is activated the other is automatically turned off to ensure proper ranging
function. Long Range and Rain Mode can be on at the same time.
FUNCTION 1: LONG RANGE MODE
This mode is used when you want the rangefinder
to range only those items beyond 150 yards. If you
are ranging targets closer than 150 yards, turn the
Long Range Mode off.
FUNCTION 2: RAIN MODE
The Rain Mode is used in rainy conditions and screens
out false returns from raindrops or other atmospheric
interference to provide an accurate range.
FUNCTION 3: 1
ST
TARGET MODE
1st Target Mode is used to display the range to the
closest object when more than one object may be
hit by the beam. Multiple objects will often return
an average distance. 1st Target Mode ensures an
accurate reading on the closest object.
Last Target Mode is automatically disabled while 1st Target
Mode is activated.
8
9
FUNCTION 4: LAST TARGET MODE
This mode is used to find the distance of the
farthest object when more than one object may be
read. Multiple objects will often return an average
distance. Last Target Mode ensures an accurate
reading on the farthest object.
1st Target Mode is automatically disabled while Last Target Mode is activated.
FUNCTION 5: METER OUTPUT
This mode displays both LOS (Line of Sight) and TBR
ranges in meters, and will disable readings in yards
or feet. TBR is displayed with one decimal place
resolution in large numbers just above the reticle,
LOS is displayed in small numbers above the angle
readout (just below and to the right of the reticle).
FUNCTION 6: FEET OUTPUT
This mode displays both LOS (Line of Sight) and TBR
ranges in feet, and will disable readings in yards
or meters. TBR is displayed with one decimal place
resolution in large numbers just above the reticle,
LOS is displayed in small numbers above the angle
readout (just below and to the right of the reticle).
FUNCTION 7: YARDS OUTPUT
This mode displays both LOS (Line of Sight) and
TBR ranges in yards, and will disable readings in
meters or feet. TBR is displayed (no decimal place
resolution) in large numbers just above the reticle,
LOS is displayed in small numbers above the angle
readout (just below and to the right of the reticle).
10
11
FUNCTION 8: LINE OF SIGHT OUTPUT
This mode, when activated, provides the straight line
distance to the target. The output is displayed in smaller
numbers just below and to the right of the reticle.
NOTE: On the RX-I model, LOS is displayed in large
numbers above the reticle (in the TBR position).
FUNCTION 9: FAHRENHEIT OUTPUT
When activated, this mode displays the air
temperature in Fahrenheit. If Fahrenheit is activated,
the Celsius Mode and LOS (Line of Sight) range
will be disabled. The output is displayed in smaller
numbers just below and to the right of the reticle.
FUNCTION 10: CELSIUS OUTPUT
When activated, this mode displays the air
temperature in Celsius. If Celsius is activated, the
Fahrenheit Mode and LOS (Line of Sight) range
will be disabled. The output is displayed in smaller
numbers just below and to the right of the reticle.
FUNCTION 11: DIGITAL COMPASS MODE (RX-IV ONLY)
When this mode is activated, the compass heading will
be displayed in larger numbers above the reticle. If the
Digital Compass Mode is activated, the True Ballistic
Range (TBR) will be disabled. The compass will perform
accurately even if tilted for viewing targets up or
down hill, up to a 30° slope. This tilt compensation
is accomplished via a sophisticated computer processed
algorithm that incorporates both the compass and inclinometer readings.
12
13
NOTE: Calibration of the compass must also be performed when the rangefinder
is initially used and anytime it is moved to a new region — see Function 17 for
calibration procedure.
FUNCTION 12: DECLINATION ANGLE OUTPUT (RX-IV ONLY)
This mode allows the user to manually set the
declination angle that corrects the usual compass error
between magnetic north and true north. Declination
angle for your area can be found on the corner of
any USGS topography map or on several Internet sites.
To set the declination, push Set in the Declination Mode.
The angle will begin at 0˚ and go up as you continue to push the Set button.
You can hold down the Set button and it will progress up at a slow rate. For
negative numbers, progress all of the way up to +30°. The next press of “Set”
will start the numbers at -30° and continue to progress in a positive direction.
Stop at the correct angle. Press Mode or wait for the power to “time out” to
save the declination angle setting.
NOTE: Pressing “Set” continues to run through these settings until you press
”Mode” to move on.
NOTE: Magnetic fields are constantly shifting on the Earth so declination angle
may need to be reset every couple of years for maximum accuracy.
FUNCTION 13: TRUE BALLISTIC RANGE
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, 130 grain bullet at 3,050 feet
per second up a 30 degree incline at 400 yards, direct
line of sight, TBR output will be 364 yards. For this you
would hold 10 inches over the target, rather than 15 inches as you would hold
between your 300 and 400 yard marks. State-of-the-art processing algorithms
developed by the same engineers who developed Sierra Infinity© Exterior
Ballistic Software and who developed ballistic algorithms for many space
vehicles over the last 40 years to determine the True Ballistic Range with
14
15
incredible accuracy, eliminating potential errors that could cause you to
miscalculate your aiming point. The first step in correctly using TBR is Practice,
Practice, Practice. Anytime you handle a firearm or bow, you are ultimately
responsible for where your projectile ends up.
The inclinometer output is shown below the LOS
output or thermometer, whichever is enabled. The
inclinometer output will be disabled when TBR is
turned off.
For rifle hunters, adjustment or holdover information
can also be displayed. The available settings are as
follows: MOA displays the minute of angle to adjust for, HOLD displays the
inches or centimeters to holdover the aiming point, and BAS outputs the
equivalent range to use with Leupold’s Ballistic Aiming System reticles or the
distance to shoot at if holding over. TBR for rifle settings is effective to 800
yards for most cartridges.
For rifle users, when TBR mode is selected by pressing Set or Power on RX-II,
the upper TBR output display will begin to flash, scrolling through three
options as you continue to press Mode. These options are HOLD (HOLd), MOA,
and BAS (bAS). One of these modes needs to be selected before moving on
to choosing your ballistic group in Function 15. To select ballistic groups for
archery, TBR needs to be turned off and BOW turned on.
HOLD will display your holdover for that target at that
distance, which is also based upon the ballistic group
and sight-in zero that you will choose in a later
mode. The upper digits display holdover in inches if
feet or yards are the chosen measurement output.
Centimeters will be displayed if meters are chosen
for your measurement output. Your hold will be
shown as “HI 999” or “LO 999”.
MOA Mode will show your minute of angle
adjustment for your target, taking into account
the True Ballistic Range. The upper display will
show MOA adjustment as “UP 999” and “dn 999”.
16
17
BAS will display the equivalent horizontal range.
This is the range that you will want to shoot at,
instead of the line of sight distance, which can be
grossly off depending upon the angle of the shot.
The display will read the equivalent horizontal range
in the measurement you have chosen previously.
NOTE:
True Ballistic Range is available only in the RX-II,
RX-III, and RX-IV models.
400 Yards (line of sight) at a 40º Incline
TRUE BALLISTIC RANGE
™
Aim as if the target is 335 yards away
TBR™ (TRUE BALLISTIC RANGE™): RIFLE
18
19
TBR™ (TRUE BALLISTIC RANGE™): ARCHERY
40 Yards (line of sight) at a 40º Incline
TRUE BALLISTIC RANGE
™
Aim as if the target is 34 yards away
FUNCTION 14: BOW BALLISTIC GROUP
This mode, when activated, works with TBR to provide
the correct ballistic range for arrows. To select, be
sure that TBR is turned off (follow instructions In
Function 13), then select BOW by pressing Set or Power
on RX-II. The range that displays will correspond to the
target. It incorporates three different groups (Group A, B, or C) depending on
the particular arrow drop. You must choose one of the three groups, based
on your bow and arrow selection. Only one group can be selected at a time.
Selecting a new group deactivates all other groups. Most importantly, using
TBR effectively means Practice, Practice, Practice. Anytime you handle a firearm
or bow, you are ultimately responsible for where your projectile ends up.
BOW GROUP DATA
Bow
Group
Initial Arrow Velocity
(feet per second)
Drop from 20 yard pin
at 40 yards (inches)
Typical Bow Description
A L
ess than 215 30 or more
Older bows shooting aluminum arrows and newer bows set at
draw weights below 50 lb
B 2
15 to 250 20 to 30 Quality, newer bows shooting carbon arrows at 50-65 lb draw weight
C 2
50 or more Less than 20 Fast bows with draw weights in excess of 65 lb
20
21
For best results, measure the drop of your arrow at 40 yards from your 20 yard
aiming point.
1. Set up a small target point such as a two-inch circle of paper high on a
large, safe background, such as a stack of bales backed by a solid backstop.
Be sure to allow for three feet or more of drop to avoid arrow damage.
2. Shoot 2 or 3 arrows at the target from 40 yards, using your 20 yard pin
on the small target.
3. Measure the distance from the small target to the center of the group
of arrows.
4. Select your TBR bow group from the “Drop from 20 yard pin at 40 yards”
column above.
Only use initial velocity for determining your bow group if you have obtained a
chronograph measurement of your arrow speed. Bow manufacturer’s published
speeds such as IBO speed are based on standard draw lengths and weights
that are not likely to be the same as with your bow, therefore the actual
performance will not be the same.
FUNCTIONS 15: SEVEN RIFLE
BALLISTIC GROUPS
TBR includes ballistic settings for seven
cartridge groups that were specifically
formulated for the three functions of TBR,
which are displayed as A, B, C, AB, AC, BC,
and ABC. For example, if your cartridge group
is in Group A, the reading in function 15 will tell
you what the distance is for holdover purposes, taking
into account the shot angle (see following chart). You must choose one of
the seven groups, based on your cartridge and ballistic information. Selecting a
new group deactivates all other groups. TBR performance groups organize load
performance in a way that provides generally less than 2.5 inches (1/2 minute of
angle) of error in aiming out to 500 yards. The cartridge table shows a common
assortment of factory loads organized in their TBR performance groups. If you
are shooting a similar bullet weight and muzzle velocity that falls between the
selections provided, then that group is correct for your load.
22
23
TBR PERFORMANCE GROUPS: CARTRIDGE TABLE
TRB
Group
Sight-In
Distance
Cartridge Name
Bullet Weight
(grains)
Muzzle Velocity
(feet per second)
A
3
00
Y
ards
.270 Weatherby Magnum 100 3760
Lazzeroni 7.21 F
irebird 140 3640
.30-.378
Weatherby 165 3500
.30-.378
Weatherby 180 3450
.300
Weatherby Magnum 150 3450
B
3
00
Y
ards
.240 Weatherby 87 3523
.240
Weatherby 100 3406
.270
Weatherby Magnum 130 3200
.270
Weatherby Magnum 150 3245
.270
Winchester Short Magnum 130 3249
7mm Shooting
Times Westerner 140 3330
7mm Shooting
Times Westerner 160 3050
7mm
Weatherby Magnum 139 3340
7mm
Weatherby Magnum 175 3070
7mm
Winchester Short Magnum 140 3310
.300 Remington Ultra Magnum 180 3250
.300 Remington Ultra Magnum 200 3025
.300
Weatherby Magnum 180 3250
.300
Winchester Magnum 150 3280
.300
Winchester Magnum 180 2960
.300
Winchester Short Magnum 150 3300
.300
Winchester Short Magnum 180 3025
.338 Remington Ultra Magnum 180 3030
C
2
00
Y
ards
.204 Ruger 32 4225
.204 Ruger 40 3090
.22-250 Remington 55 3650
.223 Remington 40 3700
c
ontinued on next page
TBR PERFORMANCE GROUPS: CARTRIDGE TABLE
TBR
Group
Sight-In
Distance
Cartridge Name
Bullet Weight
(grains)
Muzzle Velocity
(feet per second)
C
2
00
Y
ards
.223 Winchester Super Short Magnum 55 3850
.223
Winchester Super Short Magnum 64 3600
.243
Winchester Super Short Magnum 55 4060
.243
Winchester Super Short Magnum 100 3110
.25
Winchester Super Short Magnum 85 3470
.25-06 Remington 115 2990
.25-06 Remington 120 2990
.260 Remington 120 2890
.270
Winchester 130 2910
.270
Winchester 150 2850
.270
Winchester Short Magnum 150 3275
7mm
Winchester Short Magnum 160 2990
.280 Remington 140 2990
.280 Remington 150 2890
A
B
200
Y
ards
.243 Winchester 100 2950
.243
Winchester 100 2960
7mm-08 120 3000
7mm-08 140 2800
.338 Remington Ultra Magnum 250 2660
.338
Winchester Magnum 210 2829
A
C
200
Y
ards
.25 Winchester Super Short Magnum 120 2990
.260 Remington 115 2750
6.5x55mm Swedish 140 2630
7mm Remington Magnum 175 3150
.280 Remington 160 2940
.300 H&H Magnum 180 2880
.300
Weatherby Magnum 200 2700
.30-06 Springfield 125 3140
c
ontinued on next page
24
25
TBR PERFORMANCE GROUPS: CARTRIDGE TABLE
TBR
Group
Sight-In
Distance
Cartridge Name
Bullet Weight
(grains)
Muzzle Velocity
(feet per second)
AC
200
Y
ards
.30-06 Springfield 180 2700
.308
Winchester 150 2820
.308
Winchester 168 2670
.338
Winchester Magnum 210 2830
.338
Winchester Magnum 250 2650
.378
Weatherby Magnum 300 2800
.460
Weatherby Magnum 450 2700
B
C 200 Yards
.378 Weatherby Magnum 300 2925
ABC 2
00 Yards
.223 Remington 64 3020
.378
Weatherby Magnum 300 2920
For hand loads or any other unique loads not shown in the above list, the table on
the next page provides a guideline for selecting the appropriate TBR performance
group. Check the ballistic performance of your load by consulting your reloading
manual, ballistics software, or by referring to literature or Web sites provided by
your cartridge manufacturer. You may also visit the Leupold Web site at
www.leupold.com for more assistance in selecting your group. If you have your
ballistic performance data, select your performance group from the table on the
next page based on the bullet path at 500 yards. Be sure not to confuse bullet path
with bullet drop. Bullet path will be related back to your sight-in range whereas
bullet drop relates only to the total drop of the bullet, regardless of sight-in range.
TBR PERFORMANCE GROUP SELECTION TABLE: FOR BEST FIT UP TO 500 YARDS
TBR
Group
500 Yards Bullet Path
Sight-in
Range
A
Less than -20 inches of path height 300 Yards
B
-20 to -25 inches 300 Yards
C
-35 to -41 inches* 200 Yards
AB
-41 to -42.5 inches 200 Yards
AC
-42.5 to -49.5 inches 200
Yards
BC
-49.5 to -52 inches 200
Yards
ABC
More than -52 inches of path height (if the path height is more than 64 inches, performance
will be reduced by the difference)
200
Yards
* If your bullet height path is less than -20 inches at 500 yards with a 200 yard sight-in, consider sighting-in at
300 yards and selecting group A or B. Alternately, you can use group C with a 200 yard sight-in, but the TBR
w
ill be less accurate at extreme long ranges.
Extreme Long Range Group Selection —
If you intend to shoot varmints
or targets at ranges beyond 500 yards, selecting your group based on 800
yard performance will provide a better performance match throughout this
working range. Select your group for extreme long range shooting from the
table below.
26
27
TBR PERFORMANCE GROUP SELECTION TABLE: FOR BEST FIT UP TO 800 YARDS
TBR
Group
800 Yards Bullet Path
Sight-in
Range
A
Less than -96 inches of path height 300 Yards
B
-96 to -120 inches 300 Yards
C
-139 to -164 inches** 200 Yards
AB
-164 to -189 inches 200 Yards
AC
-189 to -212 inches 200
Yards
BC
-212 to -236 inches 200
Yards
ABC
More than -236 inches of path height (if the path height is more than 250 inches, performance
will be reduced by the difference)
200
Yards
** If your bullet path height is less than -139 inches at 800 yards with a 200 yard sight-in, consider sighting-in at
300 yards and selecting group A or B. Alternately, you can use group C with a 200 yard sight-in, but the TBR will
be less accurate at extreme long ranges.
REMEMBER: Knowing your theoretical bullet path at long ranges is not a
license to take shots beyond ranges at which you have practiced, particularly
at game animals or where stray shots could hit unintended targets. It is your
responsibility to have an intimate familiarity with the performance of your
firearm and to know where the bullet is going to go. The RX rangefinder may
serve best as a tool for learning performance during practice at a secure range
so you are ready for that critical shot.
FUNCTION 16: MATCH 13™ RETICLE SYSTEM
™
By selecting this mode, any one of 13 preloaded reticles can be chosen as the
primary aiming point for the RX rangefinder. To select a reticle, press Mode to
scroll through the 13 reticle options. Press Power on RX-I and RX-II, or Set
on RX-III and RX-IV, to select a reticle.
The reticle choices are as follows:
Bracket Square Duplex®: Brackets an elk torso at 40
yards or a deer torso at 30 yards. Provides easy aiming
on 3D targets and game for archers. Duplex provides
bold contrast for low light.
Duplex®: Familiar reticle to shooters from riflescopes;
draws eye to the center, easy to see, does
n
ot cover the target in the center where aiming is
m
ost critical.
Plus PointTM: Ideal for varmints and other small targets.
Small open center avoids coverage of very small or
d
istant targets.
28
29
Bracket Circle Duplex®: Provides bolder aiming for
low-light/low-contrast situations. Brackets small game
and 3D targets at 40 yards. Brackets a deer at 50 yards.
Excellent for muzzleloaders.
Bracket SquareTM: Brackets an elk torso at 40 yards or
a deer torso at 30 yards. Provides easy aiming on 3D
targets and game for archers.
German #4: A favorite of European hunters. Provides
bold aiming and is free from obstructions in the upper
h
alf of the field of view.
Bracket CircleTM: Brackets small game 3D targets and
game at 40 yards. Brackets a deer at 50 yards. Great
choice for muzzleloaders. Open compass points draw
the eye to the center.
FUNCTION 17: CALIBRATING THE COMPASS
The RX models that feature the Compass Mode let you instantly determine the
direction to, as well as the distance from, an object or animal. Before using the
compass for the first time, or for the first time in a new geographic location,
you must first calibrate it.
1. Press “Mode” and progress through the entire Quick Set Rotary Menu
to the reticle options.
2. Select your reticle setting, press the “Set” button once, and “CAL” will
display and flash.
3. Press the “Set” button again and “CAL” will stop flashing and remain
on dislplay.
4. Smoothly rotate the RX a full 360 degrees within 24 seconds.
5. Press the “Set” button after the calibration is completed, or the
calibration will be completed automatically after 24 seconds.
30
31
6. The calibration of the compass is now complete.
See Function 12 on page 13 for instructions on setting declination angle.
OTHER USEFUL FEATURES
Clear Field™ Function: This allows you to clear the icons for modes, units, etc.,
without deactivating the modes.
To toggle Clear Field on and off — hold the “Power” button, then press
the “Mode” button.
Display Illumination: Provides sharp display contrast for optimum readability
in low-light situations.
RX-III and RX-IV only — Hold down the “Set” button.
Cleaning/Maintenance
Blow away dust or debris on lenses, or use a soft lens brush (such as the one
found on the Leupold LensPen). To remove fingerprints, water spots or tougher
dirt, use a soft cotton cloth or the cleaning end of the Leupold LensPen. A lens
tissue with lens cleaning fluid may be used for more stubborn dirt. Always
apply cleaning fluid to the cleaning cloth, never directly to the lens.
To insert a new battery, remove battery cover (shown in diagram on page 6)
and remove exhausted battery. Insert new CR-2 battery, negative terminal first,
into the battery compartment. Close battery cover.
To focus the RX rangefinder, turn the eyepiece left or right (you will feel and
hear the clicking of the diopter, indicating a change to the focus has been
made) until crisp focus is achieved.
RX-I and RX-II models are weatherproof. RX-III and RX-IV models are waterproof.
All RX models include a lanyard and are equipped with a lanyard attachment
for added security in the field. All RX models are also supplied with a small
instructional supplement in the inside pocket of the included case.
32
Helpful Hints for Using the Leupold
RX Digital Laser Rangefinders
HOW DO I ACTIVATE TRUE BALLISTIC RANGE (TBR)?
Only available in RX-II, RX-III, and RX-IV. See Function 13 on page 14.
Be sure to select the proper group for bows on page 20 or rifles on page 22.
HOW DO I ACTIVATE SIMPLE LINE OF SIGHT (LOS) RANGE?
Always on for RX-I model.
To activate on RX-II, RX-III, and RX-IV models: follow the Quick Set Rotary
Menu procedure (see page 5).
THE COMPASS IN MY RX-IV GIVES INCORRECT READINGS WHEN AIMING
U
P OR DOWN HILL.
The compass in the RX-IV is tilt compensated up to a 30° up or down hill
line of sight. The computer processor in the rangefinder takes the compass
reading and the inclinometer reading to create a correct compass bearing
calculation, unlike any rangefinding product on the market. Viewing angles
in excess of 30° will produce incorrect compass readings
33
WHEN I SHOOT BASED ON THE TRUE BALLISTIC RANGE READOUT PROVIDED
BY THE RANGEFINDER, THE PROJECTILE IS NOT HITTING THE TARGET.
The first step in correctly using TBR is Practice, Practice, Practice. Anytime
you handle a firearm or bow, you are ultimately responsible for where your
projectile ends up.
Be certain that if you’re shooting a bow that “BOW” is turned on.
Be certain that if you’re shooting a rifle that “BOW” is turned off.
Be certain you selected the correct ballistic groups (see pages 20-27).
It is imperative that a rifle be sighted-in at the recommended range.
For rifles, ballistic performance of firearms and ammunition may vary from
manufacturers published information.
For bows and rifles: If possible, obtain actual chronograph measurements of
projectile speed to make TBR work as accurately as possible.
RANGEFINDER DOES NOT PROVIDE RANGE OR RANGE IS OBVIOUSLY INCORRECT.
Make sure you don’t have a mode turned on that prevents the rangefinder
from ranging your target. For example, if Long Range Mode is on and
“>150” appears at the top of the display, you will not be able to range
something at 50 yards.
34
35
The target may also be absorbing too much light (as in extremely dark-colored
animals). Try ranging an object next to the target.
Try turning on a mode that improves performance in your conditions such as
Rain Mode when it is raining (see Function 2 on page 8).
On RX-I and RX-II models, be certain you are not in the Quick Set Rotary
Menu function. The unit will “time out”, and go into ranging mode from
any mode setting in the Quick Set Rotary Menu after three or four seconds.
Alternately, you may hold down “Mode” to get out right away. The unit is
ready to range when dashed lines appear in the upper display.
HOW DO I ACTIVATE THE INCLINOMETER READOUT?
RX-II, RX-III, and RX-IV: TBR or BOW must be activated for angle of
inclination to display (see Function 14 on page 20).
NOTE: The inclinometer is not available on the RX-I model.
Warranty/Repair
By Parcel Service
Leupold & Stevens, Inc.
Attn: Product Service
14400 NW Greenbrier Parkway
Beaverton, OR 97006-5791 USA
By Mail
Leupold & Stevens, Inc.
Attn: Product Service
P.O. Box 688
Beaverton, OR 97075-0688 USA
For product questions, consult the Leupold Web site at:
www.leupold.com or call (503) 526-1400.
Your Leupold RX Series digital laser rangefinder is warranteed by the Leupold
Green Ring
™
Electronics Warranty, and is protected from defects in materials
and workmanship for TWO YEARS (RX-III and RX-IV models) or ONE YEAR (RX-I
and RX-II models) from the date of purchase. In event of a need for service or
repair, please contact Leupold Product Service at:
36
37
Leupold & Stevens, Inc. reserves all other rights. AMERICA’S OPTICS AUTHORITY; DESIGN ONLY (GOLDEN RING); GOLDEN RING;
KATMAI; L AND DESIGN; and LEUPOLD are registered trademarks of Leupold & Stevens, Inc., Beaverton, Oregon. BALLISTIC
AIMING SYSTEM; BOONE & CROCKETT; BRACKET CIRCLE; BRACKET SQUARE; CASCADES; CLEAR FIELD; DARK EARTH; DIGIT
AL
INSTRUMENT PANEL; GREEN RING; GREEN RING DESIGN; INFINITE POWER BAND; LIGHT
OPTIMIZATION PROFILE; MATCH 13
RETICLE SYSTEM; MESA; OLYMPIC; PINNACLES; OPEN POINT; PLUS POINT; QUICK SET ROTARY MENU; RX; SEQUOIA; TBR; TRUE
BALLISTIC RANGE; VX-L, X-TREME; and YOSEMITE are trademarks of Leupold & Stevens, Inc., Beaverton, Oregon. Note: We
reserve the right to make design and/or material modifications without prior notice.
Leupold products are manufactured under one or more of the following patents: U.S. Patents: 4,643,542; 5,035,487;
5
,231,535; 5,671,088; 5,866,048; 6,005,711; 6,279,259; 6,295,754; 6,351,907; 6,359,418; 6,469,829; 6,519,890;
6
,691,447; 6,816,305; D347,441; D403,393; D413,153; D414,835; D415,546; D416,972; D420,718; D420,807;
D421,286;
D427,658; D490,097; D506,520; D512,449. Foreign Patents: BX30938-00; CA-Rd./Enr. 999-88472; CA1253381;
DE49903766.9;
DE69216763.3; DE-M9304093.8; EC000059613; EP0540368; GB0540368; IL31338; IT75604; JP1074623;
SE55201; TW148948; other patents pending.
This publication may not be reprinted or otherwise reproduced without the expressed written consent of Leupold & Stevens, Inc.
Copyright © 2005 Leupold & Stevens, Inc. All rights reserved.
RX Series Rangefinder
Artwork Part No. 61309
Part No. 61374
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