Question about Centerpoint Technologies CenterPoint Adventure Class 3-9x40mm Riflescope with Adjustable Objective a

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I am trying to bore sight a rifle with a center point 4x16x40 and i run out of adjustment to get the lazer to align with the cross hairs

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When bore sighting you need to adjust in small steps and "TAP" the bore or the main body of your scope to cause a golt, as when shooting your gun it will kick and cause the scope cross hairs to take their set.  Tap it with a med sized screw driver handle. Make a small adjustment and tap it, adjust and tap. 

Posted on Sep 24, 2009

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How to use redfieeld 3x9x42 scope


Depends on the scope and rifle type to which it is attached.
I invested in an inexpensive laser bore such as this one for an AR: SightMark AccuDot Laser Bore Sight - 223 Model SM39001 (for AR-15)
Once the scope is mounted properly, and assuming you have not made any vertical or horizontal adjustments, set the rifle on a stable platform, insert the bore sight, point it at a target 50 (rimfire) to 100 (AR) yards out (works best in low light situation).
Once you have the laser centered on your target, make elevation and windage adjustments as necessary placing the scope cross hairs over the laser. Remove the bore sight and fire 3 rounds, then fine tune elevation and windage.

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Exploded diagram


You don't actually adjust cross hairs, you adjust point of impact. You do this using the turrets located near the center of the scope. the top one will adjust height, the r hand one will adjust windage.

Feb 21, 2014 | Bushnell BANNER RIFLE SCOPEPower: 3-9X40 /...

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Which direction do you turn windage and elevation


To raise the point of impact, turn the elevation screw counterclockwise. To shift left, turn windage screw clockwise. If you raise the horizontal cross hair you will lower the point of impact of the bullet. If you move the vertical cross hair to the right the shot placement will go to the left. Make small adjustments tap the scope with a screwdriver handle to give it a shock, not to hard to help move the cross hairs and try to bore sight first. Hope this helps Fix ya up.

Jun 22, 2011 | Tasco 22 Riflescope

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How to sight in crosman extreme g1 pellet rifle scope


You would sight in an air rifle scope in the same manner as any other standard scope that you might find on a rifle:

You want to secure the rifle as best you can with the sights pointed towards a target, which should be set at the desired distance.

Reduce the error of your sight adjustments either by mounting the rifle in a gun mount or simply resting the stock (not the barrel!) on a solid surface such as a table.

Make sure that the weight of the rifle is carefully supported and the **** is firmly pressed into your shoulder. Looking through the sights, aim at the very center of the target (which for your purposes can be as simple as a piece of paper with a dot drawn in the middle).

Take time to ensure a careful shot, and be sure to avoid any shaking, utilizing the support of the mount/table (try resting the fore-grip of the stock on a roll of paper towels if you're having trouble keeping the rifle steady).

Once you are confident with the placement of the cross-hairs over the center of the target, gently squeeze (don't pull) the trigger.

Determine where the pellet struck the target, and adjust the scope accordingly; while every scope is a little different, the same basic principles for adjustment apply. Unscrew the caps on the top and side of the scope, and carefully read the markings on the adjustment dials.

If the pellet struck low, twist the dial on the top of the scope 'up' (the markings should specify clockwise/counter), and if the pellet struck high, twist in the opposite direction. If the pellet struck to the left or right, follow the same procedure for the dial on the side of the scope.

If the pellet struck low and to the side, make the vertical (up/down) adjustments first, repeat the shot, and only move on to make adjustments left/right once the pellet strikes in vertical alignment with the center of the target.

Take your time, and adjust in increments of only 2-3 clicks to start. Repeat the procedure until the pellets are striking consistently in the center of the target (if you're having a hard time remembering which shot went where, replace the target and continue.

Once you are satisfied with placement of your shot groupings on the targets, replace the dial covers on the scope.

Tips and Notes:
- In order to maintain the accuracy of your rifle, try to avoid resting the rifle on its scope and try to prevent the barrel from contact.

- Take note of your rifle's range, and be aware that the further away you place the target, the less consistent your results will be.

- Be realistic; don't attempt to sight in an air rifle at 50 yards. Remember that even with a rifle that has been professionally sighted, good results still come down to the accuracy of the shooter.

-Sight in your rifle at a range where you are confident in your own abilities; start with a closer target and only move back (i.e. sight in at a greater distance) if necessary.

Further Instruction:
http://www.chuckhawks.com/sight-in_rifle.htm
http://www.youtube.com/watch?v=lLirsAFpsfE

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1 Answer

How do i use a tasco 28A


1. Insert the Bore Stud into the Stanchion while aligning the arrows as shows. Insert the assembled scope guide into the muzzle of your rifle with the grid pattern upright. 2. Select the Aperture Cap that fits your objective rim. Place it over the objective end of your rifle scope and press until it fits flatly against the rim. 3. Using the Adjustable Scale measure the top of your rifle scope tube to the center of the rifle bore as follows: Open the rifle breach. Rest the upper arm of the scale on the scope tube before or behind the windage and elevation turrets. The scale markings should be facing towards you reading vertically and ascending from bottom to top. Slide the lower end of the scale up or down until it is touching the center point of the bore. On center fire rifles the center point will be the firing pin. On rimfire models the center will be the shell extractor. Read the number that corresponds to the indicator marked "CF". Make a note of the reading. 4. Aim the rifle toward a light, flatly lit area such as a wall or open sky. Caution: Do Not Look At The Sun As Permanent Eye Injury Could Result. 5. While keeping the riflescope at the right distance to see the full field of view, sight through it on the grid pattern. Move the stanchion right or left until the bold centerline is parallel to the vertical reticule wire. Turn the windage dial right or left until the vertical reticule is aligned with the grid centerline. 6. Use the reading from the scale to align the horizontal reticule wire. Find the numbered horizontal grid line that corresponds to the number on the scale. Turn the elevation dial right or left until the horizontal reticule wire aligns with this corresponding grid line. 7. To make your final zeroing adjustments remove the scope guide from the bore of your rifle. WARNING: FIREING YOUR RIFLE WITHOUT REMOVING THE SCOPE GUIDE MAY CAUSE DAMAGE TO YOUR RIFLE AND OR CAUSE YOU INJURY At a range or other safe area test fire a group of three rounds of the same type ammunition at a target at least 50 yards away. Refine your scope alignment by adjusting the windage and elevation dials. Move to your desired distance from the target and test fire another group and make your final windage and elevation adjustments. 8. Restore the stud tension by pressing the end of the spring.

Feb 13, 2011 | Tasco Scope Guide Quickly Zeroing Rifle...

1 Answer

My cross hairs do not move when i adjust my sights. i bought a laser bore sighter and the laser points in the same exact spot no matter how far i turn my adjustments nor do my cross hairs move.


This happens a lot during bore sighting, - no shock to the scope to jar the cross hairs. So take your screwdriver and use the handle - rap the scope or better just tap it. Not hard enough to bend/dent it but jar it so things can move if need to.

Jan 04, 2011 | Tasco Target/Varmint 6-24x42mm Rifle Scope...

2 Answers

Cannot get to the bull's eye. rifle shoots 2" to right of bull's eye. after two full turns left on windage - nothing happened. I',m ready to return to the store. Any help???


continue to adjust the wind-age. If your problem persists I would suggest turning both to a random point and re-start sighting the gun. If that does not fix the problem return the sight because this most likely means the wind-age is disconnected.

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2 Answers

Adjustment Issue


the scope should all ways be fitted with the wind adjustment on the right as you look down the rifle, therefor the top ajuster is for up/down,
right ajuster is wind,,left/right, the easy way to set it up is to aim at some sand with the rifle on a stand or in a jig, shoot one round see were it hits and without moving the rifle, turn the turrets till the cross is over the point were the bullet landed, having a pall to move the turrets for you helps a lot here, the main point is dont move the rifle till the turrets have been moved first,, its that or bore sight it,,, jig the rifle up pointing at a target at say 200yds look down the bore aim the bore at the target lock down the rifle check it by looking down the bore again then set the cross up in the scope on what you see down the bore
you will need to tweek the scope a bit as you havent taken the bullet drop into the ajustment that way,,

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1 Answer

I need a scope guide instruction sheet for the Tasco 28a


1. Insert the Bore Stud into the Stanchion while aligning the arrows as shows. Insert the assembled scope guide into the muzzle of your rifle with the grid pattern upright.

2. Select the Aperture Cap that fits your objective rim. Place it over the objective end of your rifle scope and press until it fits flatly against the rim.

3. Using the Adjustable Scale measure the top of your rifle scope tube to the center of the rifle bore as follows: Open the rifle breach. Rest the upper arm of the scale on the scope tube before or behind the windage and elevation turrets. The scale markings should be facing towards you reading vertically and ascending from bottom to top. Slide the lower end of the scale up or down until it is touching the center point of the bore. On center fire rifles the center point will be the firing pin. On rimfire models the center will be the shell extractor. Read the number that corresponds to the indicator marked "CF". Make a note of the reading.

4. Aim the rifle toward a light, flatly lit area such as a wall or open sky. Caution: Do Not Look At The Sun As Permanent Eye Injury Could Result.

5. While keeping the riflescope at the right distance to see the full field of view, sight through it on the grid pattern. Move the stanchion right or left until the bold centerline is parallel to the vertical reticule wire. Turn the windage dial right or left until the vertical reticule is aligned with the grid centerline.

6. Use the reading from the scale to align the horizontal reticule wire. Find the numbered horizontal grid line that corresponds to the number on the scale. Turn the elevation dial right or left until the horizontal reticule wire aligns with this corresponding grid line.

7. To make your final zeroing adjustments remove the scope guide from the bore of your rifle.

WARNING: FIREING YOUR RIFLE WITHOUT REMOVING THE SCOPE GUIDE MAY CAUSE DAMAGE TO YOUR RIFLE AND OR CAUSE YOU INJURY

At a range or other safe area test fire a group of three rounds of the same type ammunition at a target at least 50 yards away. Refine your scope alignment by adjusting the windage and elevation dials. Move to your desired distance from the target and test fire another group and make your final windage and elevation adjustments.

8. Restore the stud tension by pressing the end of the spring.

Dec 14, 2008 | Tasco Scope Guide Quickly Zeroing Rifle...

1 Answer

Bushnell Sportview rifle scope wide angle 4x38 T4389 limited adjustment inconsistant results


Hello,
I had the same problem but was able to solve it by shimming the scope mounts with a thin piece of plastic. Put it under the rear to raise the sighting and under the front to lower. I still plan to buy my son a better scope.

Mar 02, 2008 | Optics

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