Bushnell BALLISTIC RETICLE User manual

BALLISTIC RETICLE
INSTRUCTION MANUAL
LIT. #: 98-0518/01-05
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CONTENTS
English
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2-6
7-12
13-18
19-24
25-30
31-36
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BALLISTIC RETICLE INSTRUCTIONS
TRX Reticle Ballistic Reticle
USING YOUR BALLISTIC RETICLE
Your new Bushnell riflescope contains a Ballistic or TRX reticle which lets you quickly determine what
your holdover should be to ensure first shot hits. By incorporating the target distance with an accurate
understanding of the ballistics of your rifle, you can easily calculate the holdover since each of the
horizontal lines are three minutes apart. This reticle also allows you to determine precise leads for moving
targets and exact compensation for shooting in a crosswind.
RETICLE DESCRIPTION
Below the center of the reticle there are four horizontal lines. Each line is 3 minutes apart and can be
used to quickly calculate holdover. Three minutes indicates the width of the angle covered between these
lines. As with any angle, the area covered by the angle gets larger as you get further away from the shooter
(who is at the center of the angle). For example, three minutes represents 3 inches at one hundred yards,
6 inches at 200 yards, 9 inches at 300 yards and so on. The following table is a handy reference for
calculating the distance between the 3MOA lines at various distances.
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Yards 100 200 300 400 500
3 Minutes of
Angle
3 inches 6 inches 9 inches 12 inches 15 inches
CALCULATING YOUR HOLDOVER
First, learn the drop of your specific bullet at various distances. While ideally this can be done at the range,
you can also do this by looking at the appropriate ballistic tables on the ammunition manufacturer’s web
site, catalog or reloading manual. For example, if you are shooting a .300 Winchester Magnum with a
180 grain bullet, you might get ballistics similar to the following:
Yards 100 200 300 400 500
Drop in inches versus
line of sight (note
positive number is
above line of sight)
+1.5 +1 -7 -24 -50
To select the appropriate line to use at the various distances holdover, just divide the bullet drop by the
inches per line to determine the appropriate line to use at your various distances. For close range, simply
use the center line.
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Yards 100 200 300 400 500
Drop (inches) +2 +1 -7 -24 -50
Inches/3moa line
3 6 9 12 15
Drop divided
by inches at
this distance
.67 .2 -.8 -2.0 -3.4
Line below center
Use center Use Center 1 2 3
For use at close ranges, we suggest you keep your scope on lower powers and use the center for the reticle.
When shooting at longer ranges (300 yrds plus with this rifle) you need to set your scope to the highest
magnification to ensure that your reticle is calibrated properly. Since this is a variable power scope, the
reticle stays the same size no matter the magnification, so it must be set at the highest magnification to
synchronize the reticle.
CALCULATING HOLDS FOR WIND AND MOVING TARGETS
Your horizontal lines also provide a precise way of holding for crosswinds and target movement. Just look
in your cartridge’s wind drift and moving target tables to determine the exact holds for different distances.
The first reticle line below the center extends three minutes to the left and right of the center, the second
line extends 6 minutes to the left and right and so on so once you know your drift, it is easy to calculate
the proper hold using the same formula you used above.
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FCC Note:
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
· Reorient or relocate the receiving antenna.
· Increase the separation between the equipment and receiver .
· Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
· Consult the dealer or an experienced radio/TV technician for help.
The shielded interface cable must be used with the equipment in order to comply with the limits for a digital device pursuant to Subpart B of Part 15 of
FCC Rules.
Specifications and designs are subject to change without any notice or obligation on the part of the manufacturer.
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Notes:
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BALLISTIC RETICLE
INSTRUCTION MANUAL
FRANÇAIS
LIT. #: 98-0518/01-05
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INSTRUCTIONS POUR LE RÉTICULE BALISTIQUE
Réticule TRX Réticule balistique
UTILISATION DU RÉTICULE BALISTIQUE
Votre nouvelle lunette de tir Bushnell contient un réticule balistique ou TRX qui permet de déterminer
rapidement ce que le maintien doit être pour vous assurer de la précision du premier coup. En associant
la distance à la cible à une compréhension exacte de la balistique appliquée à votre arme à feu, vous
pouvez calculer facilement le maintien, étant donné que toutes les lignes horizontales sont à trois minutes
d’écart. Ce réticule vous permet aussi de déterminer des corrections de pointage précises pour les cibles
en mouvement et la compensation exacte pour le tir par vent latéral.
DESCRIPTION DU RÉTICULE
En dessous du centre du réticule se trouvent quatre lignes horizontales. Chaque ligne est à 3 minutes
de l’autre ; elles servent à calculer rapidement le maintien. Trois minutes signifient la valeur de l’angle
compris entre ces lignes. Comme dans tout angle, la zone se trouvant dans l’angle s’élargit à mesure
que l’on s’éloigne du tireur (qui se trouve au centre de l’angle). Par exemple, trois minutes représentent
3 pouces (7,6 cm) à cent yards (91,4 m), 6 pouces (15,2 cm) à 200 yards (182,8 m), 9 pouces (22,8 cm)
à 300 yards (274,3 m) et ainsi de suite. Le tableau suivant constitue une référence pratique pour calculer
la distance entre les lignes de 3 minutes d’angle à diverses distances.
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