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Help with mount issues

 
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  #1  
Old 02-13-2012, 11:18 PM
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Help with mount issues

I have a Leupold 3.5-10x40 (1") with the CDS turrets. I have good sight settings out to 500 yards but I am getting quite high in my adjustment range. I would like to build some elevation into the base. The knee jerk answer would be to use a 10 or 20 MOA base; however, I find that they are quite tall and I like my scope mounted as low as possible. The second solution would be the Burris signature zee rings, but once again they would be .140" higher than my current set up. My current set up is a 2 piece steel weaver style base with extra low? Burris zee rings. Would it be a reasonable solution to shim the rear base 0.010" and then lap the rings? Shouldn't this give me about 10 MOA of additional elevation? Does anyone see any issues with this approach? Is my thinking off base? Is there another solution that wouldn't raise the scope very much?

Thanks in advance for the assistance.

Dan
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Old 02-14-2012, 07:20 PM
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Seems to me you're half way there. Just buy the posi-align offset insert kit for the rings you already have:
Installation Kit
1 each of +/-.005, +/-.010, +/-.020
Part number 626019

This seems too obvious. Am I missing something?
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  #3  
Old 02-14-2012, 07:59 PM
KRP KRP is offline
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Re: Help with mount issues

Quote:
Originally Posted by bruce_ventura View Post
Am I missing something?
He's using standard Zee rings, not Signatures.

The proposed solution should work, the spacing of the mounts will dictate how much elevation you'll actually get from a given thickness shim.
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Old 02-14-2012, 08:56 PM
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Re: Help with mount issues

Quote:
Originally Posted by KRP View Post
He's using standard Zee rings, not Signatures.

The proposed solution should work, the spacing of the mounts will dictate how much elevation you'll actually get from a given thickness shim.
Do you have a quick formula for calculating the moa correction?
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  #5  
Old 02-14-2012, 09:06 PM
KRP KRP is offline
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Re: Help with mount issues

Using inches for measurement.

shim thickness/(ring spacing X .000291)
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  #6  
Old 02-14-2012, 10:03 PM
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Re: Help with mount issues

Quote:
Originally Posted by KRP View Post
Using inches for measurement.

shim thickness/(ring spacing X .000291)
It looks like .010" is 7.92 MOA. I may try to go with .015". That should be sufficient ofr my purposes.

Thanks

Dan
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  #7  
Old 02-15-2012, 03:21 PM
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Re: Help with mount issues

You may end up with a lot less grip from the rings if you lift the rear and then lap them. Just a forewarning should you see your scope start slipping....

I just checked the Burris site - the height of the regular Zee rings and Signature Zee rings is the same for the low height - 0.150. I don't even see that Burris currently lists them in "extra low" for the Zees - and I'd find it hard to believe that they'd work even with a 40mm objective.

Signature ring measurements (bottom of page):
Scopes - rifle scopes, handgun scopes, hunting scopes by Burris Optics

regular Zee ring mesurements (bottom of page):
Scopes-Solid Steel Rings by Burris Optics
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