Mark 8TM CQBSSTM User's Manual
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Table of Contents Know Your Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2 How to Install the Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4 How to Sight-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Know Your Scope 1 2 .5R 3 .5L 3.5 10 3 4 1.5L 2.0L 2 5 2.5L 1 OFF 9 OFF 8 4x 3x 2x 6 1. 2. 3. 4. 5. Objective Lens Elevation Adjustment Windage Adjustment Erector Lenses Power Selector 6. Diopter Lock Ring 7. Ocular Lens 8. Diopter Adjustment Ring 9. Illumination Adjustment 10.
3 Riflescopes have become far more sophisticated over the years, but the four most basic parts have remained the same. Working from front to back they are: 1. The objective lens (or front lens) is critical to a superior sight picture. 2. The reticle, often referred to as the crosshair, provides the aiming point. 3. The internal erector lenses which rights the image. 4.
How to Install the Scope THE LOWER THE SCOPE, THE BETTER A scope mounted close to the rifle ensures proper cheek weld on the stock for a stable firing position and allows for rapid target acquisition. We recommend using the lowest possible ring height. No specific clearance is required, but the scope must clear the bolt handle, hammer (on lever actions and handguns), sights, and barrel.
5 ESTABLISHING EYE RELIEF Because of the safety considerations associated with proper eye relief, Leupold strongly recommends that you mount your scope as far forward as possible. Beyond that, follow these steps: 1. With the scope as far forward in the mounts as possible, hold the rifle in your normal shooting position (Variable power scopes should be set at the highest magnification for this process). 2. Slowly move the scope to the rear just until you can see a full sight picture. 3.
WARNING If a scope is mounted too far to the rear, the eyepiece can injure the shooter’s brow. Shooting at an uphill angle also increases this hazard because it shortens the distance between the brow and the rear of the scope. For this reason, Leupold scopes are engineered to provide generous eye relief. Therefore, when mounting your scope, we recommend positioning it as far forward in the mounts as possible to take full advantage of this generous eye relief. COMPLETING THE INSTALLATION 1.
7 eye the reticle should appear sharp and crisp; if it does not, it is necessary to adjust the focus by means of the eyepiece. 1. Grasp the thin knurled lock ring near the rear of the eyepiece and back it away from the eyepiece, toward the rear of the scope. 2. If you tend to hold things away from yourself to see them clearly (you are farsighted) turn the rear-most portion of the eyepiece counterclockwise a couple of turns.
How to Sight-In USING A BORE-SIGHTING COLLIMATOR To save time and ammunition, start out in your shop or gun room with a bore-sighting collimator. Follow the directions included with the collimator for specific instructions on its proper use. Remember, when possible, it is better to make the initial windage adjustments to the mount base before using the scope’s windage adjustment. NOTE: Bore-sighting alone is not sufficient to sight-in a scope.
9 TRADITIONAL BORE-SIGHTING (BOLT ACTIONS) Preliminary sighting-in can also be accomplished by bore-sighting at the firing range using a target from 20 to 50 yards away. 1. Position the firearm on the bench, using sandbags to steady the firearm. 2. Remove the bolt from the firearm. 3. Looking through the bore itself, move the firearm to center the bull’s-eye of the target inside the barrel. 4. Hold the rifle steady.
THE FINAL STEP: THREE-SHOT GROUPS Whichever bore-sighting method you’ve used, the next steps are the same on the firing range. To ensure reliable results, always fire from a rested position when performing these steps. 1. Fire a shot or two. 2. If you are several inches off center, make an appropriate amount of adjustment to move the reticle to the center of the target. 3. Carefully fire a three-shot group. 4.
11 Making Precise Elevation And Windage Adjustments The style of elevation and windage adjustments on Leupold riflescopes varies with specific models. Each, however, is clearly marked in easy to read increments. If, for example, there are four hash marks from zero to (and including) the number one on an adjustment knob, then the value of each increment of adjustment on that knob is 1/4-MOA. For the Leupold Mark 8TM CQBSSTM, the windage and elevation adjustments are marked in 0.1 milliradian increments.
ELEVATION ADJUSTMENTS FOR THE LEUPOLD MARK 8 CQBSS The elevation adjustment is equipped with a Bullet Drop Compensation (BDC) dial matched to the standard trajectory of M118LR 175 grain ammunition. For more information relating to zeroing the BDC dial and proper use, please see Zeroing and Using the BDC Dial in the next section. 12 .5L 3.5 3 1.5L 2.0L 2 2.
13 located approximately 1/8” from the turret housing, then re-tightening the screws. .5 1 0 10 9.5 8 9 8.5 8 .5L To engage the hard-stop and limit the elevation dial to one revolution, loosen the set screws, push the dial toward the maintube until the knurled ring is flush with the turret housing, then retighten the set screws. 1.0L 1.5L .5 1 0 10 9.5 8 9 8.5 8 .5L 1.0L 1.
ZEROING AND USING THE BDC DIAL The elevation adjustment is equipped with a Bullet Drop Compensation (BDC) dial matched to the standard trajectory of M118LR 175 grain ammunition. Once zeroed, the BDC dial allows the user to simply dial the elevation adjustment to the appropriate distance and fire. The numbers engraved along the lower portion of the elevation dial represent the adjustment increment in mils.
15 meters, the set screws must then be loosened and the dial must be rotated to the “3” before the set screws are retightened. This is a one-time process; once the rifle has been zeroed, the BDC dial matches the zero distance, and the set screws have been retightened, the BDC dial has been calibrated and will perform properly from that point forward. We recommend performing the initial sight-in procedure with the hard-stop disengaged to allow ample adjustment travel in either direction.
standard trajectory of M118 LR 175 grain Notch ammunition, alternate dials (available through the Leupold Custom Shop) can Tab easily be installed. To install an alternate BDC dial, simply loosen the set screws and lift the Pinch and Turn elevation dial assembly from the scope. Once the entire assembly has been removed from the scope, unscrew and remove the thin knurled ring at the bottom of the dial assembly and slide the BDC ring off the dial assembly.
17 until the thin knurled ring is flush with the turret housing. To install the dial assembly without engaging the hard stop, push the dial toward the maintube until you feel the first detent and the thin knurled ring is 1/8" above the turret housing. Secure the set screws. WINDAGE ADJUSTMENTS FOR THE LEUPOLD MARK 8 CQBSS Windage adjustments can be made by pinching the dial on the right side of the scope and rotating the windage adjustment.
loosen the set screws, push the dial toward the maintube until the knurled ring is flush with the turret housing, then retighten the set screws. We recommend performing the initial sight-in procedure with the hard-stop disengaged to allow ample adjustment travel in either direction.
19 non-adjustable mount – the adjustments won’t provide equal travel in all directions. To regain full balanced travel, you must recenter the adjustments as follows: 1. Turn the windage adjustment to the point that it stops moving. 2. Counting the clicks or hash marks, turn it all the way in the other direction. 3. Turn the dial back half the amount of clicks or hash marks counted. 4. Repeat this process for the elevation adjustment.
What You Should Know About Variable Power Scopes Leupold variable power scopes allow you to select from a range of magnifications to suit your particular rifle, cartridge, and shooting needs. WARNING: Do not lubricate the power selector ring; doing so is unnecessary. All variable power scopes have a power selector ring in front of the eyepiece assembly. Turn the ring to align the number indicating the desired magnification with the indicator on the body of the scope.
21 eyepiece. It occurs when the image of the target does not fall on the same optical plane as the reticle. This can cause a small shift in the point of aim. Maximum parallax occurs when your eye is at the very edge of the exit pupil (Even in this unlikely event, our 4x hunting scope focused for 150 yards has a maximum error of only 8/10ths of an inch at 500 yards).
Using the Illumination/ Holographic Dot The control dial for the Mark 8 CQBSS Illuminated Reticle is located on the left side of the adjustment turret. The Mark 8 CQBSS may be used in either the standard or the illuminated state. When not illuminated, the reticle performs the same as the reticle in a standard non-illuminated Leupold scope. When the illumination is activated, a 5 MOA holographic dot will appear in the center of the reticle providing improved contrast and allowing faster target engagement.
23 To illuminate the reticle: 1. Grasp the illumination dial located on the left side of the adjustment turret. 2. Turn the dial clockwise from the OFF position to the first number indicated on the dial. 3. View the target through the scope to determine if the reticle is bright enough to stand out clearly against the target. 4. If more illumination is required, continue turning the dial clockwise until the reticle is clearly visible against the target.
The battery for the illuminated reticle is located inside the control dial and can be changed without tools. If the reticle fails to illuminate or 2 appears dim even on the highest 1 illumination setting, it is necessary to OFF change the battery. The Mark 8 CQBSS uses a CR2032 lithium coin-cell battery. To change the battery: +UP 1.
25 2. Remove the old battery from its position in the center of the dial. This can be done in two ways: (A) Grasp the edges of the battery between the thumb and forefinger and lift it free of the dial. OR (B) Turn the scope so that the illumination dial faces downward and gently tap the illumination control against the edge of your palm. 3. Insert the new battery, positive (+) side up. 4.
Leupold Means Minimal Maintenance LENSES Leupold scope lenses are coated to reduce light reflections and light scattering, thus increasing light transmission through the scope. They should be cleaned as carefully as you would a camera lens. Begin by using a lens brush to remove dust and then pure alcohol, high-grade glass cleaner, or pure water on a cotton swab. WINDAGE / ELEVATION ADJUSTMENTS These adjustments are permanently lubricated. There is no need to lubricate them.
27 EYEPIECE The eyepiece is permanently lubricated. There is no need to lubricate it. The eyepiece can be rotated as far as it will go in either direction, it will not detach from the scope as there is an internal lock ring. SEALS Leupold scopes are sealed from within by several methods, including O-rings. All seals are permanent and require no maintenance. SCOPE EXTERIOR Leupold scopes are made of rugged 6061-T6 aircraft aluminum alloy.
TROUBLE SHOOTING TIPS Before you ship a scope back to the factory for service or repair, please check the following items: 1. Check the mount to make sure the scope is mounted securely to the rifle. Try, with bare hands only, to gently twist the scope in the rings or see if anything moves when you jiggle it. If there is any movement, retighten the mounting system according to mounting instructions. 2.
29 5. Be certain that both the barrel and chamber are clean. Heavy factory grease or copper fouling can diminish the accuracy of the firearm.
Leupold Product Service If your Leupold scope fails to perform in any way, you may return it directly to the factory for service. We recommend contacting Leupold Technical Service at 1-800-Leupold (538-7653), and following these shipping instructions: 1. Remove the rings and any other accessories from the scope. 2. Record the serial number of the scope and keep it for your records. 3. Include a note with your name, address, telephone number, E-mail, and a description of the problem. 4.
31 In the United States: Parcel Service: Leupold Product Service 14400 NW Greenbrier Parkway Beaverton, OR 97006-5790 USA By Mail: Leupold Product Service P.O. Box 688 Beaverton, OR 97075-0688 USA Outside the United States: All Leupold CQBSS Scopes must be serviced by our factory in the United States. A U.S.
The Best Consumer Protection in the Business All Leupold Golden Ring products are made with your absolute satisfaction in mind. That’s why we offer the Leupold Full Lifetime Guarantee: If any Leupold Golden Ring product is found to have defects in materials or workmanship, we will, at our option, repair or replace it. Free. Even if you are not the original owner. No warranty card required. No time limit applies.
33 THE LEUPOLD ELECTRONIC WARRANTY Certain Leupold scopes are equiped with electronic components, which operate independently of the mechanical and optical systems of the scopes. These electronic components are warranted for a full two years against all material and manufacturing defects. This warranty is effective from the date of purchase of the scope.
LEUPOLD MARK 8 PRODUCTS WARRANTY Warranties on Leupold tactical optical products vary depending on use and other factors. For more information regarding the warranties on these products, contact Leupold at (503) 526-1400 or 1-800-Leupold (538-7653).
35 Leupold & Stevens, Inc. reserves all other rights.
This publication may not be reprinted or otherwise reproduced without the expressed written consent of Leupold & Stevens, Inc. Copyright © 2010 Leupold & Stevens, Inc. All rights reserved.
37 Notes
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