Leupold Hunting Equipment User Manual
BALLISTICS
RETICLE
SUPPLEMENT
Table of Contents
Boone and Crockett™ Big Game Reticle . . . . . . . . . . . . . . . . . . . . . . . . . Page 1
Varmint Hunter’s Reticle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 11
Long Range Duplex Reticle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 21
Long Range Varmint Reticle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 27
Another Way to Sight-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 30
Various language translations of the BAS Manual can be found at www.leupold.com.
La traduction en français du manuel BAS se trouve à www.leupold.com.
La traducción al español del manual BAS se encuentra en www.leupold.com.
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La traduzione in italiano del manuale BAS è pubblicata sul sito seguente: www.leupold.com.
1
The Leupold Ballistics Aiming
System™– Boone and Crockett™
Big Game Reticle
The goal of every hunter is a successful hunt with a clean harvest. It was with
this in mind that Leupold® created the Leupold Ballistics Aiming System™.
Because we so strongly agree with the Boone and Crockett Club’s® legacy of
wildlife conservation and ethical fair chase hunting, we have designated one
of the system’s reticles as the Boone and Crockett™ Big Game reticle, while
the other is designated as the Varmint Hunter’s reticle.
Together, the Boone and Crockett™ Big Game reticle and the Varmint Hunter’s
reticle give the hunter two very useful tools intended to bring about successful
hunts with clean and efficient harvests. Through the use of these straightforward
and easy-to-follow instructions, it is sincerely hoped that all hunters will find
their skills improved and their hunts more successful.
An Overview of the Leupold
Ballistics Aiming System
Leupold Ballistics Aiming System provides a series of aiming points to
improve your ability to shoot accurately at longer ranges. The first aiming
point (the intersection of the Duplex® reticle) is designed to be used at 200
yards with most common cartridges or at 300 yards in several flatter shooting
cartridges designed for longer range use.
The Leupold Ballistics Aiming System provides you with two different power
selector positions, indicated by large and small triangles located within the
magnification level indicators (VX®-7 users: see “Another Way to Sight In”
on page 30). These are provided to allow you to select the hold points best
suited to the cartridge you are using. In some cases, the smaller triangle setting
can be used to accommodate your slower, heavier bullet load, while the
larger triangle can be used to accommodate a faster, lighter bullet load in
the same rifle. The reticle assumes bullets of similar spitzer shape will be
used throughout.
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As an example, a 30-06 with a 180 gr spitzer bullet and 2700 fps muzzle velocity
would require the use of the smaller triangle mark. A 30-06 with a 150 gr
spitzer bullet at 3000 fps muzzle velocity would use the larger triangle mark.
We have designated three sets of cartridges to be used in conjunction with
the large and small triangles and sight-in distances of either 200 or 300 yards,
described as Group A, Group B, and Group C:
• Group A cartridges will use the large triangle and a 200 yard zero
• Group B cartridges will use the small triangle and a 200 yard zero
• Group C cartridges will use the large triangle and a 300 yard zero
Be sure to verify the aiming points by practicing at the actual distances at
which the points are intended to work. Ballistics performance of your rifle
and cartridge can vary somewhat from ammunition manufacturer data
due to rifle barrel length, actual ammunition performance, and various
atmospheric conditions.
Boone and Crockett™ Big Game Reticle Cartridge List
(48-58 inches of drop at 500 yards)
(Less than 35 inches of drop at 500 yards)
(35-45 inches of drop at 500 yards)
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General Instructions
For the Use of the Leupold
Ballistics Aiming System
SIGHTING-IN
The Boone and Crockett™ Big Game reticle is sighted-in by zeroing the rifle
at the intersection of the Duplex® reticle at either 200 yards (Group A and
B), or 300 yards (Group C). For Group C cartridges sighted-in at 300 yards, the
lower aiming marks will be correct at 400, 500, 550, and 600 yards. The scope
must then be set to the appropriate triangle to properly use the ballistics
compensation features. Be sure to verify the aiming points by practicing
at the actual distances at which the points are intended to work. Ballistics
performance of your rifle and cartridge can vary somewhat from ammunition
manufacturer data due to rifle barrel length, actual ammunition performance,
and various atmospheric conditions. See the Owner’s Manual for detailed
sighting-in instructions.
Specific Instructions for the
Use of the Boone and Crockett™
Big Game Reticle
The Boone and Crockett™ Big Game reticle offers:
• a Duplex central aiming point (sighted-in at 200 or 300 yards) as well
as CPC-style hold points calibrated to 300 and 400 yards, and additional
aiming features for targets at 450 and 500 yards for Group A and Group B
cartridges (add 100 yards for Group C cartridges)
• a 10 mph windage hold point at both the left and right ends of the 300 and
400 yard CPC-style hold points
• the traditional VX®-III range estimating feature between the Duplex central
aiming point and the top vertical heavy post (consult the Leupold Riflescope
Owner’s Handbook)
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Range
200 yd MOA
200 yd Inches
300 yd MOA
300 yd Inches
400 yd MOA
400 yd Inches
450 yd MOA
450 yd Inches
500 yd MOA
500 yd Inches
Power Selector Values
Large Bullet Drop
20.11 25.13 12.69
29.50 36.87 —
40.95 51.18 —
Small Bullet Drop
—— —
—— —
2.19 2.74 2.16
6.88 8.61 6.79
4.80 6.00 3.03
6.26 7.83 —
7.82 9.78 —
10 MPH Drift
NOTE: When using a cartridge in Group C and sighting-in at 300 yards, add
100 yards to all of the above yardage indicators.
Using the Boone and Crockett™
Big Game Reticle
In order to use the Boone and Crockett™ Big Game reticle, you must determine
which of the three groups (Group A, Group B, or Group C) your cartridge and
load fits into.
DETERMINE POWER SELECTOR SETTING
First, determine which of the triangles on the power selector is the correct
one to use with your particular rifle caliber, bullet weight, and muzzle velocity.
Refer to the tables of Group A, Group B, and Group C cartridges on page 4.
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Once you have determined which triangle is the correct one for your rifle caliber,
bullet weight, and muzzle velocity, always remember that is the position to which
you must set the power selector when using any of the hold points on
the Boone and Crockett™ Big Game reticle.
DETERMINE THE RANGE TO THE TARGET
Determine the range to your target using a laser rangefinder such as a Leupold
RB800C, or RX™ or RXB Series digital laser rangefinder, or utilize the traditional
VX-III range estimating feature using the space between the Duplex central
aiming point and the top vertical heavy post. For more information about how
to use this feature, consult your Leupold Riflescope Owner’s Handbook.
AIMING
The Boone and Crockett™ Big Game reticle is a hold point reticle. For targets
judged to be 300 yards away, hold directly on the 300 yard hold point. For 350
yard targets, hold directly between the 300 and 400 yard hold points. For your
convenience, a 450 yard hold point has been included between the 400 and
500 yard hold points.
WIND COMPENSATION
The left and right edges of the 300 and 400 yard hold points may be used as
10 mph wind compensators. To correct for a wind speed of 10 mph, place the
edge of the hold point for the appropriate distance directly on the target when
aiming.
CONCLUSION
• Choose the appropriate ballistics group
• Sight-in at the distance required by that group (this may be done at any
magnification setting)
• Adjust the magnification to the appropriate triangle before using any of the
long range hold or windage points
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