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  #1  
Old 02-12-2017, 12:22 PM
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Question Unsure about 20MOA/0MOA elevation scope rings and base, both short and long range?


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I have a Sako A7 Long Range 300 WinMag, and it came with an aluminum base mounted on it (I assume 0 MOA elevation). Unsure about 20MOA/0MOA elevation scope rings and base, both short and long range?
I intend to get either Vortex Viper PST 6x24x50 or BURRIS XTR II 5X-25X-50MM.
After I hone my skills , knowledge, and feel for shooting short range under 500 yards (for hunting also), I would like to move out to 1000 in the future.
I understand having a 20MOA elevation base is key for long range, but am worried that it might be a problem for shorter distances, such as enough vertical adjustment the scope has.
I am also worried about how high the rings must be to accommodate for the 50mm diameter scope.

So, my question is, what mid $ range base (if necessary to get a new one), and mid $ range scope rings would you suggest?


I apologize if this is a commonly asked question, this seemed somewhat complex and other internet sources could not answer my questions.

Please and Thank You for help in advance

Current Stock Rail:
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Old 02-12-2017, 12:33 PM
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Welcome Cab, nice rifle.

Just my thoughts. Go with the std 0MOA bases you have. develope loads and you skill. you can add a 20 MOA one piece base later IF you are comfortable at 100-400 yards.

Getting a 20 MOA base now, might hinder your ability to sight in at 200 yards.

Generally a 50mm objective lense will require a HIGH st of rings.

WEAVER Quad rings are very good and reasonably priced.
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Old 02-12-2017, 12:46 PM
Dom Dom is offline
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I can highly recommend Burris Signature Zee rings with the nylon inserts. They will hold your scope from moving even under brutal recoil & be assured they will not put a mark on the scope tube. I have been using them for years with never a problem. Also by using Burris optional .010,.020 etc off set nylon inserts you can adjust your scope for long range.
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Old 02-12-2017, 12:52 PM
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Harry that sounds like a solid plan. Will a one piece ring set be compatible with the stock 2 piece base? Or even advisable?

Dom I will be sure to look into those.

Thanks a ton guys for the definitive and conclusive responses
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Old 02-12-2017, 05:57 PM
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Quote:
Originally Posted by cabrown32010 View Post
After I hone my skills.... I would like to move out to 1000 in the future.
I understand having a 20MOA elevation base is key for long range, but am worried that it might be a problem for shorter distances, such as enough vertical adjustment the scope has.
I am also worried about how high the rings must be to accommodate for the 50mm diameter scope.
A 20 MOA base is only critical to those who's scopes have small adjustment ranges, or if you burned it all up in zeroing.
I'm to lazy to fire-up Shooter, but if you can't get a WM to 1k, then you should throw that scope in the ocean.

I've had very good results with Primary Arms rings. I've only used stock 0moa bases, or shimmed them for a 308.
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Old 02-13-2017, 02:48 PM
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I used Burris Signature Zee Medium rings to mount a Burris FullField II 3.5x10x 50mm scope on a Winchester M70 30-06 and these rings provide about 1/8" clearance between the objective lense bell and the barrel.

Last edited by Travis299; 02-13-2017 at 02:56 PM.
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