Scope won't center on bore sighter... WTF??

sheephunter said:
The scope likely isn't bent...if anything there could be some internal misalignment. Have you actually shot it on a rifle to confirm what you are seeing in the boresighter? Not all bore sighters are accurate. I'd shoot it and see what it's actually doing...it could be your boresighter that's faulty.
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I agree, fire a couple rounds @ 50 yds. YoDave's idea to rotate 90 degrees is gold as well - narrow it down by process of elimination.
 
You mention that you have mounted this scope on two different rifles.
Did you move the bases over as well or did the other rifle have it's own hardware?
Find a straight one inch dowel and lay it in the rings and see how parallel it is with
the barrel on windage.
This could prove the worthiness of your bases and rings.
 
yodave said:
those scopes are really loooong............to confirm if the scope tube is bent or not turn the scope 90 degrees in your rings and snug it back up, then check again with your bore sighter. Your windage adjustment will now be elevation and the elevation adjustment will be windage.....If there is a significant change in your findings then there is a good chance the tube is bent, if there is no change in your findings then it is likely a internal issue and you should pursue warranty work
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Did this, no difference, so I guess I can officially rule out that the scope tube is bent. I guess the only options remaining are that either the internals are off, or the factory holes in both rifles are amazingly both drilled out of alignment and both in the same direction at that...



kamlooky said:
You mention that you have mounted this scope on two different rifles.
Did you move the bases over as well or did the other rifle have it's own hardware?
Find a straight one inch dowel and lay it in the rings and see how parallel it is with
the barrel on windage.
This could prove the worthiness of your bases and rings.
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Both rifles have their own hardware.
 
Try flipping the rings so they tighten from the other side and see if the problem reverses its self. I have seen a few rings that were not milled quite right.
 
Hookturn said:
Try flipping the rings so they tighten from the other side and see if the problem reverses its self. I have seen a few rings that were not milled quite right.
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Man, it seems like everyone is thinking of the same things that I am at the same time. I just did this a little while ago and there was a slight difference, but nothing major.

I even tried turning the inserts in the ZEE rings, just incase they weren't perfect, but still no major change.
 
AndrewNS said:
Did this, no difference, so I guess I can officially rule out that the scope tube is bent. I guess the only options remaining are that either the internals are off, or the factory holes in both rifles are amazingly both drilled out of alignment and both in the same direction at that...
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Or your bore sighter isn't giving a true picture.
 
You could call Bushnell and ask for their advice.
I think after reading all this, your scope does need to be sent in for warranty repair.
Maybe the seller would cough up at least one of the trips to Bushnell.
There is an old scope/mirror trick you could try. I haven't done this yet, but something
along the lines of facing the objective lense up against a mirror and dial the cross hairs
ontop of each other. Meaning the reflection image to the scope.
This is suppose to center the reticle in the scope.
Then count clicks each way and see if they are the same.

Maybe if I haven't explained this correctly, for those in the know, chime in.


AndrewNS said:
Man, it seems like everyone is thinking of the same things that I am at the same time. I just did this a little while ago and there was a slight difference, but nothing major.

I even tried turning the inserts in the ZEE rings, just incase they weren't perfect, but still no major change.
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That sucked..typed a long reply. Went back in the thread to check to make sure i wasnt repeating what someone else has said...and my reply disappeared.

Anyways, my first suspicion would be that the drilled and tapped mounting screw holes are out of alignment from the factory. Since you dont mention it i assume the rifle is new.

Firstly i would replace the bushnell with a orphan scope and see if that scope is also out of alignment similarly. That would point the finger directly at the base alignment...so check your install. Upon finding no problems you would be left buying a set of windage adjustable bases. One of the advantages of 30mm tubes is the larger adjustments for windage and elevation in the larger tube.Many different makers produce windage adjustable bases. Since your a gun nut, this isnt a bad thing. Now you have a set of bases to find a rifle for......what caliber. Its a glass half full thing.
 
nowarningshot said:
That sucked..typed a long reply. Went back in the thread to check to make sure i wasnt repeating what someone else has said...and my reply disappeared.

Anyways, my first suspicion would be that the drilled and tapped mounting screw holes are out of alignment from the factory. Since you dont mention it i assume the rifle is new.

Firstly i would replace the bushnell with a orphan scope and see if that scope is also out of alignment similarly. That would point the finger directly at the base alignment...so check your install. Upon finding no problems you would be left buying a set of windage adjustable bases. One of the advantages of 30mm tubes is the larger adjustments for windage and elevation in the larger tube.Many different makers produce windage adjustable bases. Since your a gun nut, this isnt a bad thing. Now you have a set of bases to find a rifle for......what caliber. Its a glass half full thing.
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I tried a few different scopes in the rings that this scope is sitting in and had no issues with them. It has to be something to do with the scope itself at this point...


762shooter said:
I hate to say it, but it looks to me like someone "dumped the garbage" on you.
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If that is the case, I doubt that the seller was aware of any issues with the scope. He has a very good trader rating and was very quick to reply when I sent him a message first thing this morning.
 
I decided to do a complete scope shift among 6 dirrerent rifles in order to try to solve this issue.

For now, I have this scope mounted on the rifle that has the Leupold STD base with windage adjustment. I will be heading out to the range tomorrow and taking the rifle that it is mounted to along with 2 others out for test firing. Hopefully everything will work out.

I'll post the results once I have done some test firing.
 
Andrew, Savage is notorious for having bent recoil lugs. They NEVER, and I mean NEVER have scope base hole off center in any significant amount.
With a bent recoil lug, you end up with a barrel pointing somewhere other than straight ahead. The scope points straight ahead with the rifle and the barrel doesn't. It usually is assumed that the scope is off but it is the barrel. Replace the recoil lug and all is good. I have done this many times and cannot remember the last time I reused a factory recoil lug on a Savage.
It is also quite possible to have a bad barrel. Fixed a couple of those as well.

Not saying what your problem is because obviously I haven't looked at your rifle but I suggest you strongly consider this info.
 
sheephunter said:
Or your bore sighter isn't giving a true picture.
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You mentioned swapping out a bunch of scopes, so it might be too late for this, but you could try the old fashioned method of bore sighting, i.e., take the bolt out, line up some small, distant object in the centre of the bore, then try to get the reticle to match.
 
"I have tried it on 3 different rifles, with 6 different sets of ringe and various bases, and I just simply can not get this damn thing to center on the target in my bore sighter."

This and your other comments seem to indicate that you have eliminated all other variables. The only conclusion that I can arrive at is that the scope is defective either by damage or manufacturing error.
 
9.3mauser said:
You mentioned swapping out a bunch of scopes, so it might be too late for this, but you could try the old fashioned method of bore sighting, i.e., take the bolt out, line up some small, distant object in the centre of the bore, then try to get the reticle to match.
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Agreed. This would be my next step.
 
9.3mauser said:
You mentioned swapping out a bunch of scopes, so it might be too late for this, but you could try the old fashioned method of bore sighting, i.e., take the bolt out, line up some small, distant object in the centre of the bore, then try to get the reticle to match.
Click to expand...

This^^^
Old school...
 
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