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What ring height?

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Unread 08-12-2009, 02:36 PM
Bronze Member
Join Date: May 2008
Location: Superior, WI
Posts: 65
What ring height?

I am looking to order a nightforce 20 MOA base for a HS Precision HTR and want to get nightforce rings also. My questions is since I don't have any experience with nightforce bases and rings I was wondering what would be the ring height to get, I will be mounting a Leupold Mark 4 6.5-20X50. Is there any way I can take measurements and if so what do I measure off of?
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Unread 08-12-2009, 02:58 PM
Platinum Member
Join Date: Oct 2005
Location: Michigan
Posts: 2,232
Re: What ring height?

If you currently have it mounted, measure your current ring height. If your current setup has a zero moa base, then you'll need to figure out approx how much closer the end of your scope will be to your barrel. From center of mounts, measure to front of scope. 1.04" = 1moa at 100yds (300ft, 3600"). Multiply by 20moa and divide by number of inches from center of your mounts to objective end of your scope.

This will tell you approximately how low a 20moa will drop the objective of your scope. For example 1.04*20/3600*12 = .07"

Then get the height of the Nightforce rings off their website. This should get you pretty close.

If you don't currently have the scope mounted on that rifle, then it's a guess. Depending on your barrel contour, how far forward you mount your scope you might get by with low rings, but with the 50mm I'd bet on medium rings (1" or 1.125").

I'd probably call Nightforce and see what they recommended.

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