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How To Calculate Ring Height

This is a discussion on How To Calculate Ring Height within the Optics forums, part of the Gun Forum category; A while back I made a ring height calculator since I got tired of guessing what rings to use. I've worked it over quite a ...


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Old April 1st, 2011, 05:23 PM   #1
Dodgin' The Reaper
 
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How To Calculate Ring Height

A while back I made a ring height calculator since I got tired of guessing what rings to use.

I've worked it over quite a bit to make it easier to use. You'll need the distance from the top of your hand guard to the top of your scope mount rail, the distance from the top of the rear sight to the top of the rail and some specs on your scope (eyepiece OD, objective OD and tube diameter). Then enter your preferred clearance between the hand guard and rear sight ( remember to leave room for covers) and it'll show your minimum ring height. Once all that is entered you can reverse calculate it by entering a manufacturer's ring height and it'll show how much clearance you'll have.

The best way to measure is with a caliper but if close is close enough for you then a 1/32" measuring tape will work.

The spreadsheet is in Excel .xls format and free to download.

If you have any questions on it send me a PM.

As an alternative method you can stack pennies evenly on the front and back of your mount placing your scope on the stacked pennies till it clears. Then measure the stack to find out how tall of rings you need. - This wasn't my idea, just stealing it and passing it on.

Either method works, one you need the mount and scope specs, the other you need the mount and scope.
Attached Files
File Type: xls Ring Height Calculator.xls (34.0 KB, 727 views)

Thanks from budster, nately, Yazz and 4 others

Last edited by NoExpert; April 1st, 2011 at 05:38 PM.
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Old April 1st, 2011, 05:27 PM   #2
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Ooooohhh, pretty.

That looks really nice, thanks for the work.

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Old April 1st, 2011, 05:36 PM   #3
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Originally Posted by RAMMAC View Post
Ooooohhh, pretty.

That looks really nice, thanks for the work.
Quite welcome. Just my little contribution.

Thank Lash as well for setting it up so I could upload it to the forum so it's always available.


Last edited by NoExpert; April 3rd, 2011 at 01:50 PM.
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Old April 1st, 2011, 06:35 PM   #4
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Awesome!

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Old November 1st, 2011, 10:43 AM   #5
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this is awesome, thanks!!!

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Old December 22nd, 2011, 03:15 PM   #6
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An old thread but the calculator is very useful. I'm rigging up my M14 for a new scope (I can't get my Super Sniper serviced here in Canada) so once I select a new scope, I can then figure out what rings to buy.

Thanks for the calculator.

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Old December 22nd, 2011, 06:48 PM   #7
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Quite welcome.

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Old January 16th, 2012, 05:46 PM   #8
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I knew you had this but it could not have popped up at a better time. Thanks for this Josh!

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Old January 26th, 2012, 09:32 AM   #9
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Thanks guys. This will make it easier for post mild TBI.

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Old February 18th, 2012, 11:21 AM   #10
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This is a great help! Thank you.

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Old November 20th, 2012, 08:07 PM   #11
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Thanks!!!!!!!!!

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Old December 5th, 2013, 08:26 PM   #12
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Another grateful person, thanks for sharing!!!

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