Scope ring height

Loud by design

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Oct 11, 2012
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Hi all I've got a vortex viper 6.5-20x44 that I am looking to mount on my Remington 700 varmint in 223 with the heavy barrel. I have settled on Burris tactical rings but now need to decide on what height. I have been told that the bell on this new scope is 56 mm externally and I know the tube diameter is 30mm so if I divide the tube diameter by two along with the bell diameter, then subtract the tube from the bell(28mm-15mm=13mm)So I need at least 13mm of height from my rings and base combined. The Burris medium rings are supposedly 1/2" or 12.5 mm so I would assume that the bases would be at least 5 mm or so leaving me a ~4.5 mm gap between my scope and the barrel or receiver. Please let me know if I am correct in my thinking or if there is another way to figure this out. Thanks again.

Also if there are any other sets of rings I should look at let me know. And as usual I'd like to keep the scope as low as possible
 

42769vette

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Sep 10, 2010
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I dont know how to do all the math, I just know i have the same rig and i tried .78 rings and they were to low and .87 rings fit perfect. I basically get all my ring heights by trial and error. Thats probably not the correct way but it works
 

Loud by design

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Oct 11, 2012
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What was the objective size in the scope you were using? And alsO did you run into the bell of the scope hitting or the bolt hitting the scope?
 

Sully2

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Feb 28, 2011
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I have to wonder why a scope with a 44mm objective lens carrys a 56mm outer bell.?? Seems like a hell of a lot of difference to me..????
 

Loud by design

Active Member
Joined
Oct 11, 2012
Messages
38
I had thought the same thing. That would mean the body of the scope is almost 1/4 of an inch thick. I'm thinking it was probably a miss print that I read but going by that should make sure that it will fit the first time.
 

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