Iron Sights on a singlebarrel shot gun


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litman252
November 5, 2006, 09:54 PM
I have an older, cheap, shot gun I'd like to put Iron sights on. I found a front sight ramp at brownells but don't have a rear yet and I'm wondering how to measure for the right height. I'm planing on using it for slugs and turkey loads. Thanks for any Ideas...................

Tony

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litman252
November 8, 2006, 09:37 PM
Ok, this is what I have in mind-
Front sight.
http://www.midwayusa.com/eproductpage.exe/showproduct?saleitemid=958242

Front Blade.
http://www.midwayusa.com/eproductpage.exe/showproduct?saleitemid=292636

Rear sight.
http://www.midwayusa.com/eproductpage.exe/showproduct?saleitemid=
188182

What do you guys think??
Tony

jaybar
November 9, 2006, 03:41 PM
Measure the outside diameter of the barrel where the front sight will be. Lets say its .800". Divide this by 2 to give you the distance from the outside of the barrel to the center of the bore. In this case the answer is .400". Measure the distance from the top of the barrel to the top of the front sight, lets say its .600". Add this to .400" and you have the front sight height above the center of the bore of 1.000". This is the maximum height above the center of the bore that the rear sight can be when adjusted all the way down.

Now measure the barrel where the rear sight will be located. Lets say it is 1.500". Divide that by 2 giving the center of bore measurement. That comes out to .750". Subtract that from the front sight height above bore of 1.000" and you get a height of .250" that the top of the rear sight, when adjusted to its lowest position, can be above the top of the barrel .

You'll have to play around with different height ramps, sight blades, and rear sight models to get the right combination. Brownells catalog gives you the the necessary specs for the sights, ramps and blades, so you can order what you need.
Edited to add: Be careful when calculating the front sight blade/ramp combination height . The height that they specify for the front sight blade is measured from the top of the sight to the bottom of the dovetail. The dovetail section is about .100". A blade that they specify as .312" high is actually .212" above the ramp.

Sunray
November 10, 2006, 01:39 AM
Buy a set of sights rather than separate front and a rear. That'd be a front and a rear set. Brownells or Williams.

litman252
November 12, 2006, 09:21 PM
Thanks guys,
Tony

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