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1000 yard problem

 
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  #15  
Old 06-25-2012, 06:24 AM
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Re: 1000 yard problem

Quote:
Originally Posted by bruce_ventura View Post
I recommend either swapping bases for a larger bias (30-40 MOA) or using Burris Signature rings with offset inserts.
+1! The video explains it very well.

Scopes - rings by Burris Optics
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  #16  
Old 06-25-2012, 09:32 PM
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Re: 1000 yard problem

first things first...

Perry, check to see how far your windage is dialed from center... just count the clicks to one extreme, then count back to current windage zero... then count clicks to other extreme. There should be more than 3 or 4 MOA difference...

That way you'll know if something is drilled or machined or assembled off axis.

Let us know what you find...

Dan
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  #17  
Old 06-26-2012, 11:08 PM
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Join Date: Jul 2011
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Re: 1000 yard problem

I pulled the base off and measured each end and it is 20MOA. The weather should be nice for a trip to the range tommorow to check my windage.
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  #18  
Old 06-27-2012, 11:33 AM
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Re: 1000 yard problem

You can just check the windage right there in your home...

Assuming the scope is zeroed for windage right now, just count the clicks it takes to go to extreme left... then count back to center... then count the clicks it takes to go to extreme right. Should not be more than 3 or 4 MOA difference between these two numbers.

Dan
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  #19  
Old 06-29-2012, 02:45 PM
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Re: 1000 yard problem

The windage adjustments look good. I guess the easiest thing to do at this point is buy a 30 or 40MOA base and be done with it.
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  #20  
Old 06-29-2012, 06:37 PM
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Re: 1000 yard problem

If your windage isn't off, then the base, rings, receiver and barrel are good to go.

This really only leaves the scope as the culprit.

Do a box test on a large sheet of target paper (cardboard, whatever)... just see how far up in inches your POI will go as you dial up your scope.

If it won't go where it's supposed to, send it back and take advantage of Vortex's often used great customer service.
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  #21  
Old 07-02-2012, 01:44 AM
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Quote:
Originally Posted by green 788
If your windage isn't off, then the base, rings, receiver and barrel are good to go.

This really only leaves the scope as the culprit.
I don't think the windage test rules out the barrel and receiver as the culprit. Sending the scope back may only waste time with no solution.

More likely the barrel is installed crooked - in this case pointing down. This would be difficult to see with the action in the stock. I suspect you would need vee blocks and a flat surface to confirm. I guess it could also be that the bore is not straight. The end result would be the same.

I would check another scope first. A boresight collimator would help here. I think a 30-40 MOA base is in the cards.
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