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Old 05-10-2017, 03:39 PM
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Question Mounting Height Standards


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Is it true that all rifle scopes have a set standard on height between the center point of the scope and the mounting base? I thought it was nonsense but someone insists it is. I'd understand if there was, but I'm thinking, no, because rifles don't have the same distance of bore center point and mounting base.

iimage: http://i64.tinypic.com/3506vea.png

I'm asking for professional advice and I believe the best people who can help with this question are those who work in optics manufacturing or someone who works closely with one.

Last edited by vm7488; 05-10-2017 at 05:02 PM.
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Old 05-10-2017, 03:49 PM
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The distance above the bore is highly variable. Big scopes have to be higher, bolt actions have to clear the bolt handle.
AS LOW AS POSSIBLE is the standard height. Otherwise you'd need a longer neck!

How about resizing that picture so the page doesn't go screwy....or delete it. We know what you mean.
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Last edited by JBelk; 05-10-2017 at 03:54 PM.
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Old 05-10-2017, 03:56 PM
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Welcome to the shooters forum.

To answer your question, there is no fix height between the scope and its base. Otherwise there would be no need for scope rings in various heights. The best height is one which allows instantaneous alignment of your eye, retcule, and target when the rifle is mounted. Like Jbelk said, the correct height is low as possible in most cases.
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Old 05-10-2017, 05:04 PM
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Scope height

I believe that most all of the manufactures will list the height of their rings so that you can determine if the scope will fit on your rifle. I don't believe that there is any standard for the height between the different rings although they will be close. Example is I was able to use Burris Signature Zee medium rings to mount a 3.5x10x 50 mm Burris scope on my M70 30-06 with about 1/8" clearance for the object lens to the barrel. This may not work for all rifle makes and you would have to use the high rings.
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Old 05-10-2017, 05:39 PM
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Quote:
Originally Posted by MontyF View Post
Welcome to the shooters forum.

To answer your question, there is no fix height between the scope and its base. Otherwise there would be no need for scope rings in various heights. The best height is one which allows instantaneous alignment of your eye, retcule, and target when the rifle is mounted. Like Jbelk said, the correct height is low as possible in most cases.
My thoughts exactly; I've always purchased mounts that will allow me to mount my scope as close to the barrel as possible. Less strain on the neck and less variance in alignment.
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Old 05-10-2017, 06:09 PM
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If sliding a dollar bill tells if a barrel is free floated, the same test is more than enough for a scope. Most of the time, you run out of room at the back end before the front end unless you have a diesel funnel scope on a heavy barreled rifle.
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Last edited by JBelk; 05-10-2017 at 06:11 PM.
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Old 05-10-2017, 06:18 PM
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It's your gun.

An optics expert or scientist with an exact formula won't be shooting it, YOU will. This may not be correct but: close to the barrel so the obj lens is off the bbl, the bolt handle doesn't hit the scope tube, loading/ejection isn't blocked, it fits YOU well (good cheek weld) with a good clear view of the reticle.
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