Question about Barnett Crossbows Barnett Jackal Crossbow Scope Package, 315 FPS, 150 lb, 78405

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The rear locking screw on the scope mount appears to be a adjustment screw. It does not get tight. Nothing was mentioned in the manual. or on any videos I've watched! Any help???

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I have a Bushnell rifle scope 4 by 32 I make my adjustment It shoots fine for a couple shots and then it goes way off what's up

Check to make sure your scope mount isn't loose and the scope ring screws are still tight.

Nov 04, 2014 | Optics

1 Answer

I am unable to adjust the elevation? It seems to be stuck at 10 inches below center at 100 yards and 4 inches at 50 yards on a 243 rifle. Nothing I do moves it up?

If the scope is out of adjustments and still low, you have to shim the rear base. I'd start with two thicknesses of beer can.

Sep 29, 2014 | Optics

1 Answer

Focus knob turns but nothing moves

The Celestron manual for this scope has nothing to say, but on the underside of the focuser assembly, between the 2 focus knobs, you may see 2 screws.
They might be thumbscrews or some other screwhead type. One is the adjustment for the focuser internal clearance, or looseness, and the other is a focus travel lock.
If present, try backing both off 1/2 turn from tightness, and then experiment to see which is which. The focus lock will have no effect until tight, when the focuser will cease moving, as is now. The other screw will gradually remove looseness and rattle from the focuser until it just moves smoothly, with no back and forth loose feeling at the knob.
If neither of these screws is visible you will have to take it to a binocular and telescope shop, where they should not charge much.

May 02, 2012 | Celestron Optics

1 Answer

I have a nightforce scope and i'm having trouble shooting a constant group. It seems to have a flyer per each 5 shots. Is this a possible problem with the scope, as the gun is new. The shots are from a...

It could also be the ammunition. If its federal or remmington ammo it probally isnt but if its generic ammo it could be. it is unlikely that the scope would be off, then back on again. I am sure you made sure the two mounting screws are tight and that there was nothing in the way when you put it on like a small piece of metal from when the scope was made that might have gotten pinched in the mounting clamps. Also, are the screws tight for sighting in the scope?

May 23, 2011 | Nightforce Optics

1 Answer

Elevation adjustments do not seem to hold or the scope moves slowly over time. I'm not certain. Windage works fine. Looked at manual on the web and the scope must have changed design because not...

Most of the time a scope that creeps off its zero, has a loose mount screw and or loose mounting ring. Check the mounts all screws. Some times the opposite is true. The mounts are to tight and in a bind. Then during firing the receiver heats up an tweaks the scope enough to cause creep. If the scope is always on zero when cold and creeps off after a few shots, she is in a bind. Make all adjustments to the scope base and rings with a cold gun. Loosen the front ring screws first then re-tighten then loosen the rear doing the same. Then try and re-zero the gun. If the gun never comes back to zero, you end one day shooting hi to the right and try again the next day shooting in the same spot try to re-tighten all screws. Screws from mount to gun then scope rings to scope body.

Jan 02, 2011 | Nikon 39x40 Matte Nikoplex Buckmaster...

1 Answer

In the process of zeroing the scope in I noticed that I can adjust the elevation of the scope up but can't set the adjustment down as far as I need to go in order to be sighted in. This is the first time...

There are a few things that it could be. Make sure you have the scope mounted with the elevation screw on top and the windage screw on the right side. Next, carefully check the distance of the scope from the receiver. If the mounts aren't exactly the same, the scope could be tilted upward. Try switching the front and rear mounts. Make sure you don't have either of the mounts on backwards. Make sure the scope is built for the caliber you are shooting.

If none of these fix your problem, Leupold scopes are guaranteed for life.

Oct 07, 2010 | Leupold Rifleman Rifle Scopes BHK290

1 Answer

I need to make an elevation adjustment; the cross-hair adjustment is not enough . Perhaps a more gross adjstment is possible where the ring mounts are located?

the easy way to get a little more ajustment of about 4-5 inches at 100 yds is to,,,cut up a 3 bit's of 35mm colour film to fit under the scope,,undo the rear scope top mount and lift the eye bell off its mount,,now slip the 3 bits of 35mm film under the scope body and reclamp the top mount cap,,,dont forse it up to tight ,,this will lift the point of aim
at least 4 or 5 inches at 100 yds

Aug 24, 2010 | Leupold 54120 2-7x33mm European 30mm Matte...

1 Answer

My banner scope in 4 to 12 wii not hold zero

I'd start by looking at the mounting bases.
First tighten the scope ring screws to 25 inch pounds, then loosen and remove the rings from the base(s) while still attached to the scope.
Back out the base screws one at a time, apply low strength thread locking compound and tighten each to 25 inch pounds.
Remount the rings/scope to the bases tightening till snug but not overly tight and sight-in the rifle.
Hope this helps, Mark the Gunsmith

Nov 14, 2009 | Bushnell BANNER RIFLE SCOPEPower: 3-9X40 /...

1 Answer

Target blurry at 100yds. when using 9 power with mossberg 3-9 power scope.

You have to adjust the back scope lens turn the back scope lens housing screw it out or in till it looks clear to you then turn locking ring tight to keep it in place, most scopes are never adjusted to the person because few know how to do it or that it can be done

Oct 18, 2009 | Optics

2 Answers

I have a model D-4 weaver rifle scope with missing adjustment par

Pretty much all rifle scopes have great warranties. Send it into weaver and i'm sure they will fix it plus replace any parts. I'm sure they will charge for missing parts but it would be best for them to look at it and check it out. TP

Apr 07, 2009 | Weaver Optics

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