Long range vernier sight

[milcol]

I have a C Sharps deluxe long range vernier sight,the staff is marked 0 to 3.5 there are 10 scribe marks from 0 to 1 same for each additional number,slider has 5 scribe marks have no instruction sheet anyone have info on how to properly use this sight,very different from my MVA sight.
Thanks

[montana_charlie]

If it IS very different from your MVA sight, it may not actually be a "vernier" sight.
Some of the ones sold by C. Sharps Arms weren't.

I drew this for a guy two or three years ago, and it helped him understand. It has also been useful for some others ... but not everybody.
It depends on how a guy processes information, I guess.

But the information would be correct for an MVA sight. If it won't work for the CSA unit then it must not be a vernier sight.
Can you post a picture?

http://i684.photobucket.com/albums/vv203/montana_charlie/VernierScale.jpg

[Chill Wills]

That is a very good chart.

[WILCO]

That is a very good chart.

Pretty dang slick!

[M-Tecs]

If it IS very different from your MVA sight, it may not actually be a "vernier" sight.
Some of the ones sold by C. Sharps Arms weren't.

I drew this for a guy two or three years ago, and it helped him understand. It has also been useful for some others ... but not everybody.
It depends on how a guy processes information, I guess.

But the information would be correct for an MVA sight. If it won't work for the CSA unit then it must not be a vernier sight.
Can you post a picture?

http://i684.photobucket.com/albums/vv203/montana_charlie/VernierScale.jpg

Stealing this one.

[milcol]

Here are a few pictures of the C Sharps sight I posted about yesterday hope they come out177790177791

[Don McDowell]

Call CSA, they have a whole article copied from years back with the info on how to read and run that sight. Shows the chart similar to what MC posted, plus the diagrams on how to read and adjust the windage. That is usually included in the box with the sight.
That's a fairly decent sight, but it really needs to be combined with a wind gauge front, the rear only has 14 minutes either side of zero, and actually only about 12 of that is usable.

[marlinman93]

Can't see the marks really well, but it looks like 2 or 3 of the marks might be lining up at the same time? If they are, it's somewhat tough to make any accurate adjustments and repeat them.

[Ballistics in Scotland]

I've never seen one close up, but a vernier needs to be engraved by a machine or photo-etched. I've seen similar sights in which the graduations were made in the investment casting, and they can't control shrinkage well enough to be reliable that way.

[montana_charlie]

milcol.
That is a very tall sight. Is it seven inches tall?
How much distance exists between each number on the staff?

Yes, there are five marks on the slider, which could make a person believe that it is a vernier.
But it only appears capable of breaking a staff increment into half ... to provide 20 unique settings between numbers.

Looking at the sights pictured on the CSA website, they seem to have six lines on the slider, and spaced differently than yours. Also, the triangular area at the base of the staff is marked 'CSA' on the current offering.

I am willing to make a guess or two when you answer my questions, but the best advice may be McDowell's suggestion that C. Sharps Arms has information archived (on a previously offered model) which is just waiting for you.

[Ballistics in Scotland]

It is a good chart indeed, and perhaps more useful than this one, but I might as well get it into the system with a thread entitled "vernier", in case anybody is eccectric enough to find a use for it.

I meant to have it photo-etched for a large version of Major Bagnold's sun compass, but that has been on the projects backlog for more than the usual year or two, and I may never see a desert again. I did it first with AutoCAD, and I don't know if I can recreate it or how far I could modify it with Draftsight, which has the merit that you can download it free from Dassault Systèmes or buy a CD from the enterprising freeware remarketers of eBay. It is the superseded version of Dassault's paid-for corporate software, but then plenty of us are superseded versions too. Beware of other sites that may try to make you sign up to receive spam, and then like as not fail the download.

https://en.wikipedia.org/wiki/Ralph_Alger_Bagnold

http://www.3ds.com/products-services/draftsight-cad-software/free-download/

What you see here is a .jpeg scan, but I can supply the origina .dwg file if anyone has a use for it.

177797

[Don McDowell]

Previously offered model?http://csharpsarms.com/catalog-detail/53/Deluxe-Long-Range-Tang-w-windage.html

The worst part of running that sight is remembering to loosen the set screw on the slide for elevation and the eyecup for windage.

[milcol]

From 0 to 7 the distance is 3.5 inches. The distance between numbers is 1/2 inch there are 10 scribe marks between numbers,hope this gives you another clue.
Thank You

[Don McDowell]

Each of those scribe marks would represent 5 minutes in elevation.

[montana_charlie]

Previously offered model?http://csharpsarms.com/catalog-detail/53/Deluxe-Long-Range-Tang-w-windage.html
Yes, "previously offered" because the sights shown on the website now are different from milcol's sight.

Observe ...

http://i684.photobucket.com/albums/vv203/montana_charlie/CSA_zpsenmkd0wv.png

[Don McDowell]

Charlie, don't miss the 5 between the numbers.....