SR_Manual - U.S. Optics
Contents
1. U S OPTICS SR SERIES 2 mk u CO ee A er em owe OPERATORS Thank you for choosing U S Optics The product you have purchased has been hand assembled to provide superior optical clarity and durability in any environment We are confident that the optic you have chosen will live up to your highest expectations This operators manual will guide you through the steps to properly install zero and maintain your optic for optimal performance Should you have questions that have not been addressed in this manual please contact our Customer Service Department directly at 714 562 1956 We will be happy to assist you Make every shot count The U S Optics Team TABLE OF CONTENTS RETICLE FOCUSING _ SETTING RETICLE FOCUS KNOBS 2 2 ILLUMINATED RETICLE SETO SCOPE MOUNTING INSTRUCTIONS BATTERY REPLACEMENT Ki 5 SCOPE ZEROING lt u SCOPE CARE AND CLEANING INSTRUCTIONS FAQ s RIFLE DATA SHEETS LIMITED LIFETIME WARRANTY Ae svi a H E SR padne maria ija er fer F a z gt i r ai 4 Pu U z I Li LE aed Soa ae Oa aN IEE CIERRA I NTI Nee Setting Reticle Focus FOLLOW THE MANUFACTURER S INSTRUCTIONS ON THE NOTE To prevent the natural tendency of the eye to adjust PROPER HANDLING AND SAFE USE OF ALL FIREARMS and c2. bore sighting tool is available adjust the scope for a rough 100 yard zero If a bore sighting device is not available proceed to step one NOTE If using a scope equipped with a US 4 Mini Erector Repositioning Elevation Knob EREK go to page 14 SIE 15211 0 4 Taking aim at the center of the target fire three shots to ai ARIJE confirm adjustment changes o Repeat steps 2 through 4 to make any further zeroing adjustments until the point of impact coincides with the point of aim Using the supplied TS Torx key loosen the socket head screws one half of a turn and pull the knob drums away from the scope turret to realign the windage and elevation knob zero reference mark with the index line engraved onto the windage and elevation spools Tighten socket head screws to lock windage and elevation knob drums In place Zeroing with the US 4 Mini EREK knob If the elevation of your first shot is close to your desired zero use the knob and not the center screw to make any adjustments If first shot elevation is too high or too low or to obtain maximum elevation travel insert the supplied 1 8 hex key into the center screw of the elevation knob If the bullet impact is high rotate the wrench clockwise until reticle is properly adjusted to point of aim If the bullet impact is low rotate the wrench counter clockwise until reticle is properly adjusted to point of aim Hold the knob to keep it from t
3. S Optics scopes A Diopter range is 2 to 3 Q Is there a U S Optics dealer in my area A Please visit our website at www usoptics com to locate a dealer near you Q Why does my reticle seem blurry A See RETICLE FOCUSING on page 2 Q Can switch out the knobs on my scope A No Knobs and more specifically knob assemblies which include the turret and spool cannot be switched after a scope has been built because the knob assemblies are permanently bonded in place This is a labor intensive and costly procedure that we do not perform once the scope has been assembled Q a knob drum custom engraved for BDC A Yes Q My illumination knob ts not working A Try replacing the battery See BATTERY REPLACEMENT instructions on page 7 for more information If a new battery does not fix the problem call 714 562 1956 for further assistance from one of our technical support representatives Rifle Data Sheets Q Do need to lap my scope rings ime i Ammunition A No manufacturing and machining technology is so precise that Baro Press most scope rings are manufactured to exacting tolerances and do not require lapping If something does not feel right at any time when mounting your scope and rings STOP Call the manufacturer of the scope rings for advice Q Does U S Optics offer a Government Law Enforcement Military discount A At U S Optics we recognize and appreciate the h
4. ard knob for the SR Series scopes with 48 US 4 Knob he US 4 is a miniature version of The Erector clicks per revolution A screw Repositioning Elevation Knob EREK which incorporates a center on protective cover is included screw for rough zeroing This allows the knob to be zeroed near with all scopes that incorporate the bottom of its travel the Zeroing knob s so that all movement of the knob is upward The US 4 knob provides 100 positive clicks per one complete revolution Illuminated Reticle System scopes equipped with an illuminated reticle system IRS include multiple brightness settings Three buttons control the lit reticle ON OFF 5 The other two are for higher 4 lower brightness To set the desired brightness setting depress the on off button The reticle will always illuminate to the previous brightness setting The illuminated reticle system is equipped with an automatic shut off timer that will turn off the light emitting diode LED if unintentionally left on for an hour The reticle can still be used when the illumination is turned off Power ON OFF Decrease Brightness Increase Brightness Scope Mounting Instructions NOTE U S Optics manufactures windage adjustable rings WAR Windage adjustable rings account for any mechanical offset between the host weapon and the scope base without giving up any range built into the windage turret knob If using U S Optics WAR scope rings to mo
5. ard work and especially the sacrifices made by all of our men and women in uniform We do offer a special discount to all who have or are currently serving our country in uniform Please call to take advantage of this special offer Ammunition i i Ammunition Baro Press Humidity Baro Press WIND VO M ELEV WIND YD M ELEV WIND 25 5 Te LIMITED LIFETIME WARRANTY U S Optics warrants that if you as the original customer purchase one of our products and we determine that it is defective in material and or workmanship during your lifetime we will repair or replace it at our election for free or refund your money no hassle There are just a few exceptions noted below Electronics are warranted for two years from the date of purchase Our warranty does not cover consumables or normal wear and tear or structural and or cosmetic damage resulting from abuse alterations unauthorized repairs or use contrary to U S Optics user manuals To help protect your investment or to accommodate repairs not covered by our warranty U S Optics offers reasonable rates to repair certain damage to our products To take advantage of our repair services please contact our Customer Service Department for a return merchandise authorization RMA number before shipping your scope to us Upon arrival we will Inspect your scope and provide a quote for your approval which includes shipping costs before work b
6. egins Repairs will begin after we receive your approval of the repair quote provided Once payment has cleared we will return to you your repaired scope STANDARD DISCLAIMER EXCEPT AS SPECIFIED ABOVE OR PROHIBITED BY APPLICABLE LAW ALL EXPRESS OR IMPLIED CONDITIONS AND WARRANTIES INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTY CONDITION OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ACCURACY OF ANY INFORMATIONAL CONTENT ARE HEREBY EXCLUDED AND DISCLAIMED BY U S OPTICS AND IN NO EVENT WILL U S OPTICS BE LIABLE FOR ANY SPECIAL DIRECT INDIRECT CONSEQUENTIAL INCIDENTAL OR PUNITIVE DAMAGES HOWSOEVER ARISING AND REGARDLESS OF THE THEORY OF LIABILITY EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE PRODUCTS PRICES AVAILABILITY SPECIFICATIONS AND OFFERS ARE SUBJECT TO CHANGE OR CANCELLATION AT ANY TIME WITHOUT NOTICE WARRANTY CLAIMS For problems with a U S Optics product to return a product for repair replacement or refund please call 714 581 1956 for a return merchandise authorization number F CI gt gt Pee Usopric 150 AROVISTA CIRCLE BREA CA 92821 714 582 1956 714 582 1959 INFO USOPTICS COM ISO 9001 2008 CERTIFIED PART 10 01 002 REVA 2013 10 09
7. et Ensure the alignment pins on the outer edge of the IRS module properly mate with the two female alignment holes on the turret body Slip rheostat cover onto left or right Index finger through the knurled end facing toward knuckles After aligning the IRS module to the scope turret firmly press on the rubber touch pad keeping the IRS module connected to the scope Slip the rheostat cover over the IRS module and rotate in clockwise direction to tighten until the cover has made contact with the scope body Depress the on off button to confirm that the IRS is working Scope Zeroing NOTE Confirm diopter parallax are properly set prior to Fire three rounds at the center target zeroing scope A target with a 1 grid pattern is recommended 2 To adjust windage rotate the windage knob toward the bullet for best results impact in relation to the point of aim while holding reticle at the center of the target If bullet impact is to the right as depicted in the adjacent left photo rotate windage knob to the left as indicated by the engraved markings 3 To adjust elevation rotate elevation knob toward the bullet impact in relation to the point of aim while holding reticle at the center of the target If bullet impact is high as depicted in the adjacent left photo rotate windage knob down as indicated by the engraved markings A bore sighting device will help mitigate arbitrary adjustments Ifa
8. ompensate image clarity do not fixate on a particular object for a prolonged period of time To avoid serious vision damage or loss NEVER look directly into sunlight or bright lights while using a rifle scope Set the scope magnification to the highest magnification level Rotate the eyepiece counter clockwise until it stops rotating With both eyes open point the scope toward a white wall or to the sky Do not stare at a particular object Rotate the eyepiece clockwise until the reticle is clearly in focus When the reticle is in focus close your eyes for 3 seconds then reopen them The reticle should still be clear and sharp If not repeat steps 1 through 4 until the desired image clarity of the reticle is reached 6 Set the magnification to its lowest level to confirm that the desired image clarity of the reticle is achieved Your U S Optics scope has been factory set for a zero down angle base Do not adjust the windage or elevation knob until after you have mounted and test fired your scope as outlined in this user s manual Ul PB CO gt Reticle Focusing The ocular diopter adjustment ring is used to focus the reticle Diopter adjustment is from 2 to 3 Do not use the ocular eyepiece to focus the sight picture or parallax 22 4 0 0 2 Knobs All adjustment knobs are available in 1 10 Mil 2 10 or Zeroing Knob The Zeroing 1 2 inch per hundred yards IPHY knob is the stand
9. t focal plane at the front opening of the erector tube At this distance there is a known angle from the center focal point of the rear erector lens that extends through the widest point of the first focal plane diameter The length and diameter of the erector tube are known dimensions that define the field of view from the lowest to highest magnification setting A mask is a disk that reduces the aperture of the erector tube to mitigate vignetting or tunnel vision effect It can also be used to make an off center reticle appear to be centered All critical optical and mechanical components in U S Optics scopes are precisely aligned to utilize the entire field of view based on the erector tube dimensions for all scope models without having to use a mask By not using a mask the tunnel vision effect is apparent but marginal The benefit to not using a mask is on the high end of magnification which happens to be where the largest field of view possible benefits the shooter For example and depending on the scope model a mask will reduce field of view at 4X magnification by 9 At 1 7X magnification field of view is reduced by much as 15 20 The trade off for eliminating the tunnel vision vignetting effect is that a significant portion of the field of view is sacrificed at medium to long ranges The gain on the low end of magnification does not justify the loss of field of view at higher magnification Q What are the diopter ranges for U
10. to remove moderate to heavy mud debris A soft bristled brush can be used in conjunction with running water to remove moderate to heavy mud debris from beneath crevices knurling A soft cotton or microfiber cloth can be used to wipe away any residual moisture Cleaning the Lens Surfaces CAUTION Lite Dust debris that cannot removed with compressed at a low pressure may damage the lens coatings if wiped away with a brush or microfiber cloth ahead of other cleaning methods To avoid scratching the lens surfaces properly identify the foreign matter that is present on the lens surfaces and how it is adhered to determine the proper cleaning method s listed below Lite Dust Particles Compressed air at a low pressure setting and or a lens pen or microfiber cloth can be used to remove lite dust particles off of the lens surfaces If spots or deposits are present follow Moderate to Heavy Debris Spots Deposits cleaning instructions Moderate to Heavy Debris Spots Deposits Running water under low pressure Is recommended to dislodge soften moderate debris spots deposits prior to wiping away with a micro fiber cloth or a lens cleaning wipe Use a micro fiber cloth or lens cleaning wipe to remove all debris and moisture from the lens surface s FAQ s Q Why does tt look like am looking through a tunnel at lower power A To achieve the lowest magnification level the rear erector lens is positioned furthest away from the firs
11. unt your scope please refer to the WAR ring operators manual for proper installation and use 1 Install scope rings onto scope base on host weapon per manu facturer s specifications 2 Remove the tops of the scope rings and place scope into the bottom rings Install top rings and hardware ensuring that the scope can rotate and slide fore and aft freely within the rings 3 Position the scope until proper eye relief in the assumed shooter s position is achieved Proper eye relief is achieved when the entire field of view is clear 4 Using a sand bag or a sled level the host weapon The U S Optics bubble level is ideal to confirm proper weapon leveling o Rotate the scope in the rings until the reticle is level A reticle leveling tool can be used to simplify this process 6 Tighten top scope ring screws per manufacturer s specifications Battery Replacement The illuminated reticle system IRS is powered by CR2032 lithium coin battery To replace the battery NOTE Clean any dirt debris around the rheostat cover before changing battery 1 Firmly grasp the IRS and turn counter clockwise to remove the rheostat cover Separate the IRS module from the IRS cover to access the CR2032 battery With a common tool or a finger nail remove the depleted battery Insert a new battery leaving the positive surface visible and exposed 4 Position the IRS module onto the scope turr
12. urning while adjusting elevation with the hex key Taking aim at the center of the target fire three shots to confirm adjustment changes Repeat steps 3 through 4 to make any further zeroing adjustments until the point of impact coincides with point of aim Using the supplied 9 64 hex key remove tapered screws and three hole EREK cap Retain three hole EREK cap for future use Scope Care amp Cleaning Instructions 7 Align engraved zero reference mark EREK drum with the Cleaning is recommended anytime the surfaces of the scope body elevation reference line engraved on tne elevation pga and or lenses are exposed to mud dust dirt or any other debris 8 Install two hole EREK cap onto EREK knob aligning holes on the P i y cap with the holes on the knob 9 Slip two supplied o rings onto both tapered screws and fasten tapered screws with supplied 9 64 hex key Tighten tapered screws to 10 in lb To prevent damage to seals and o rings do not use petroleum based solvents or harsh chemical solutions to clean the scope The following cleaning options are recommended Cleaning the Scope Housing Surfaces Light Dust Debris Compressed air at a low pressure setting and or a soft damp cloth is recommended to gently remove light dust debris off of the scope surfaces A soft cotton or microfiber cloth can be used to wipe away any residual moisture Moderate to Heavy Mud Debris Running water under low pressure is recommended
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