Lyman Sight Question

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SJPrice
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Lyman Sight Question

Post by SJPrice »

Does anyone know the size or specs of the set screw used as an elevation stop on the Lyman Receiver Sight?Image
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Pisgah
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Re: Lyman Sight Question

Post by Pisgah »

Don't know, but I bet Lyman does... :wink:
Lassiter
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Re: Lyman Sight Question

Post by Lassiter »

Do you need one? I think I have one if you do.
SJPrice
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Re: Lyman Sight Question

Post by SJPrice »

Thanks, but no. What I need is a slightly longer one. My elevation setting is about 1/16th higher than the length of the set screw.
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Chuck 100 yd
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Re: Lyman Sight Question

Post by Chuck 100 yd »

Take it (the screw,not the rifle) to the hardware store and match it up. :wink:
SJPrice
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Re: Lyman Sight Question

Post by SJPrice »

I have been trying, but I have yet to find any local hardware stores with a set screw small enough and or a way to measure that small of a thread to get the proper diameter and thread pitch. I am sure I can order one once I get the specs.
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vancelw
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Re: Lyman Sight Question

Post by vancelw »

I took mine out of a Lyman 66A sight. It measures...
~0.385 inches in length.
~0.097 in diameter.

My thread gauges weren't fine enough but a 28tpi seemed to match(?) even though we know that's way too coarse.

Looking in my machinery handbook the closest match is a 3-56. A #3 screw measures...
0.099 in diameter and comes in coarse (48 tpi) or fine (56 tpi)

Hope that helps????

Maybe now that I've jumped out there someone will correct me and tell you what it really it. :D
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vancelw
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Re: Lyman Sight Question

Post by vancelw »

http://www.fastenal.com/web/products/de ... hout=false

Fastenal lists one. They may not be as hard to find as I thought.
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Tycer
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Re: Lyman Sight Question

Post by Tycer »

I would consider getting a SHORTER front sight. The higher the sight elevator goes in the base the weaker it gets.
Last edited by Tycer on Sun Jan 05, 2014 7:10 pm, edited 1 time in total.
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vancelw
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Re: Lyman Sight Question

Post by vancelw »

Wouldn't you need a shorter front sight to keep from having to raise the rear too much? Might be much easier than finding a 3-48 or 3-56 screw
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Tycer
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Re: Lyman Sight Question

Post by Tycer »

vancelw wrote:Wouldn't you need a shorter front sight to keep from having to raise the rear too much? Might be much easier than finding a 3-48 or 3-56 screw
You are right. I was backwards. Shorter front sight. Edited my post. Thanks!
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vancelw
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Re: Lyman Sight Question

Post by vancelw »

Tycer wrote: You are right. !
I gotta show this to my wife! :D

First time for everything! I had to study on that a while.
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AJMD429
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Re: Lyman Sight Question

Post by AJMD429 »

SJPrice wrote:I have been trying, but I have yet to find any local hardware stores with a set screw small enough and or a way to measure that small of a thread to get the proper diameter and thread pitch.
Take it in and you can just hold it tight against a similar-diameter bolt, and you will find immediately if the thread pitch is the same. If all the little 'V's match, the bolts will both mesh together perfectly; then you have found your pitch, whether 'US' or 'Metric'. Once you have done that, you then know what nuts to try (ones that are that pitch, and close in diameter). You can pretty much tell by feel/fit to get the right diameter.

I do it all the time at the local ACE hardware - no 'gauges' needed...!!! 8)
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vancelw
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Re: Lyman Sight Question

Post by vancelw »

Any luck, SJPrice?
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SJPrice
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Re: Lyman Sight Question

Post by SJPrice »

Our very own Lassiter came to the rescue. He has a screw on the way to me. :)
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vancelw
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Re: Lyman Sight Question

Post by vancelw »

Yay!
I didn't think of it until this morning that I could have dug through my salvage to see if I had anything longer. I doubt I would have a matte black one, though. Good deal. Best forum in the 'verse.
"Make yourself an honest man, and then you may be sure that there is one less scoundrel in the world." - Thomas Carlyle
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