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.
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).
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 RX-I RX-II RX-III 1200 RX-IV...
Specifications 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. Magniﬁcation Inclinometer...
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 TARGET MODE Target Mode is used to display the range to the closest object when more than one object may be hit by the beam.
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 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).
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.
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.
— 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.
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...
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.
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.
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.
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).
TBR PERFORMANCE GROUPS: CARTRIDGE TABLE Sight-In Cartridge Name Group Distance .270 Weatherby Magnum Lazzeroni 7.21 Firebird .30-.378 Weatherby Yards .30-.378 Weatherby .300 Weatherby Magnum .240 Weatherby .240 Weatherby .270 Weatherby Magnum .270 Weatherby Magnum .270 Winchester Short Magnum 7mm Shooting Times Westerner 7mm Shooting Times Westerner 7mm Weatherby Magnum 7mm Weatherby Magnum...
TBR PERFORMANCE GROUPS: CARTRIDGE TABLE Sight-In Cartridge Name Group Distance .223 Winchester Super Short Magnum .223 Winchester Super Short Magnum .243 Winchester Super Short Magnum .243 Winchester Super Short Magnum .25 Winchester Super Short Magnum .25-06 Remington .25-06 Remington Yards .260 Remington .270 Winchester .270 Winchester...
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.
TBR PERFORMANCE GROUP SELECTION TABLE: FOR BEST FIT UP TO 500 YARDS Group Less than -20 inches of path height -20 to -25 inches -35 to -41 inches* -41 to -42.5 inches -42.5 to -49.5 inches -49.5 to -52 inches More than -52 inches of path height (if the path height is more than 64 inches, performance will be reduced by the difference) * If your bullet height path is less than -20 inches at 500 yards with a 200 yard sight-in, consider sighting-in at...
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.
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. German #4: A favorite of European hunters. Provides bold aiming and is free from obstructions in the upper half of the field of view.
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.
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.
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.
THE COMPASS IN MY RX-IV GIVES INCORRECT READINGS WHEN AIMING UP 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.
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.
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.
™ 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: By Parcel Service Leupold &...