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Tightening up an original Lyman tang sight
October 20, 2013
1:09 pm
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I have an original Lyman 1A DA Tang sight that came on one of my rifles. There is a tiny aperture than can be toggled down to open up a much bigger hole. I need to use the tiny aperture for accurate shooting, but every time I take a shot, the tiny aperture folds partway down. Bottom line: the inner aperture pivot is too loose. I'd like to tighten it up so it does not tilt down with every shot. Has anyone here had experience in tightening these things up and, if so, what is your recommendation?

October 20, 2013
4:23 pm
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About the only way to do that is to remove the pin and shim it to give it some pinch.

Bob

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October 20, 2013
4:26 pm
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Is this the same type of aperture as is found in the Lyman 21 receiver sights?

IF so I would love to find one for the #21 on my model 95.

A little sheet of metal with a couple tabs.

October 24, 2013
9:57 am
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Thanks, 1873man. That is what I'm doing right now, but was wondering if there was some metal bits I could squeeze a bit tighter.

I don't know what kind of apertures the Lyman 21 uses, but I don't think it is mounted on a post that goes up and down.

October 24, 2013
5:12 pm
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You couldn't squeeze the staff at the hinge point with good results but you might get away with tapping right at the edge of the opening with a punch and burr the opening.

Bob

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October 24, 2013
5:36 pm
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I'll think on it a bit. This is an original sight with a lot of blue still on it, so I will have to be very careful. I never flip it down, so I might just put a tiny pin point of easily removable adhesive, to glue the aperture up.

October 24, 2013
5:55 pm
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If you don't need it down then gluing it would be the best solution. I would use a little silicone seal on the face and then flip it up. You could easily push the eye piece back down if needed.

Bob

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Email: bob.1873man@gmail.com

October 24, 2013
6:24 pm
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That sounds about perfect for the job. Thanks for the input.

February 21, 2014
2:26 pm
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Hello all,

I am new to this site and I would like to thank Georgia Hill and Michael Hager for getting me registered/activated so that I may participate on the WACA Forum.

I would like to ask the good members of this Forum if anyone has, or knows where I may be able to obtain detailed exploded view drawings of the Lyman 1a tang sight.

I am in the process of restoring a 3rd version Winchester Model 1890 and the rifle I have, has the original vintage sight that I suspect was put on the rifle at its original time of purchase.
I want to take the sight apart and refurbish it so that it will match the appearance of the rest of the rifle. I have looked at the sight and I am confident I can disassemble it but it has what I call a serious "BOINGGGG" look about it and I want to be certain that when I put it back together I am doing it correctly.

If anyone out there has a drawing or knows where I may get one, I would be eternally grateful.

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