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Tech sight adjustment table

Started by socalserf, June 04, 2008, 01:01:22 PM

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socalserf

For those like me who are math challenged.


MOA  Clicks
5/8       1
1 1/4    2
1 7/8    3
2 1/2    4
3 1/8    5
3 3/4    6
4 3/8    7
5         8

The table repeats from here.
Anyone correct me if I'm wrong, I beleive this works for front and rear sights.
The fly in the ointment here is that with differnt barrel lengths this table isn't exact.

"we cannot improve what we do not measure."


dwarven1

How about putting column headers on that? I assume that the right column is clicks? Is this for the front sight, rear sight or both?
Unhappy it is ... to reflect that a brother's sword has been sheathed in a brother's breast, and that the once happy and peaceful plains of America are either to be drenched with blood or inhabited by slaves. Sad alternative! But can a virtuous man hesitate in his choice?

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J_T

What barrel length is that table for?  Did you get the info from TS or calc it yourself?

funfaler

We checked the T-100s on the 'carbine" length 10/22s, by shooting, adjusting and measuring. 

It is 1 moa per click on the carbines (18").  This goes with the .8 moa per click that Tech-Sights says for the "rifle" length (21")

This is easier to remember. 

By the way. 

I made adjustments with a T-200, using the front, to zero.  Then, to "save" the front elevation for later, adjusted the rear to the bottom, counting clicks, then lowered the front the same number of clicks.  The POI was the same, so I would say that front and rear are the same ;)

Just for fun, I zeroed with one shot, confirmed with one shot, reconfirmed with one shot....The fella that had that rifle was concerned because he only had 13 rounds of ammo to zero with.  I told him it should be "plenty".......Rifleman stuff is fun  :P ;D

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Junior Birdman

Nice job guys!  This is good stuff for the trail!  JB
"But a Constitution of Government once changed from Freedom, can never be restored. Liberty, once lost, is lost forever." John Adams

Find out just what any people will quietly submit to and you have the exact measure of the injustice and wrong which will be imposed on them. Fredrick Douglass

tpelle

This is really good info.

However, I installed an A2 front post in my Tech Sight.  I liked the idea of the front sight post always presenting a flat face towards my eye.  Of course it only has four clicks rather than five.  I suppose, since the thread pitch is obviously the same, that means that each click actually changes the elevation by 5/4 of the distance as compared to the A1 sight, meaning that the distance of each click is 1.25 times the distances shown.

I guess I need to develop a table showing the different values of clicks for my front and rear sights.  The rear sight clicks should be the same as posted.  The front clicks will represent 1.25 more.




Nickle

1.25 MOA for an A2 type post is correct.
They have men amongst them who know very well what they are about, having been employed as Rangers against the Indians and Canadians and this country being much covered with wood, and hilly, is very advantageous for their method of fighting. . . . ".  Lord Percy

Sounds like New Englanders to me.

Fred


    Gentlemens [sic], there are so many variables involved in this that don't you think the best strategy, instead of trying to hand each shooter a fish tailored to his rifle/sight combo, we simply teach him how to fish?

    (Not trying to pour any cold water on this thread. Continue to work out all the permutations. But be aware that it may help the shooter better if you tell him to figure it out - cause he's the one who needs to know how to do it. Otherwise, you give him the number, and he doesn't have the chance to learn how to do it himself...)
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      "...but he that stands it now, deserves the thanks of man and woman alike..."   Paine

     "If you can read this without a silly British accent, thank a Revolutionary War veteran" - Anon.

     "We have it in our power to begin the world over again" - Thomas Paine

     What about it, do-nothings? You heard the man, jump on in...

Buzzworth

#8
here are some flies for you ;D
go to the range and fish
teach others to fish too 8)

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KNOW Guns, KNOW Safety, KNOW FREEDOM

tpelle

The technique I've developed is to forget that the rear aperture-flip is there - I just use the long-range one.  I make my windage adjustments with the rear sight, and the elevation adjustments with the front.  Once you've doped out the different adjustments for each position, and noted them down, then it's just a matter of dialing them in as you move through the different stages.

I know this is gamesmanship, but if you're shooting for a numerical score, then it's a game, right?

But it all boils down to knowing your rifle.

metalbot

Quote from: tpelle on September 27, 2008, 08:10:10 PM
I know this is gamesmanship, but if you're shooting for a numerical score, then it's a game, right?

But it all boils down to knowing your rifle.

Knowing the dope on your rifle and using it isn't gamesmanship - that's critical to shooting at distances where bullet drop starts to exceed 4 MOA.  Most people who sit behind a scoped rifle professionally are also going to have a notebook next to them with the doping written at every 25 yard interval.
Davilla 1108

arpjoe

#11
Had to adjust my TS-200 sights on my Ruger 10/22.  Required reading the instructions.  Being that the instuctions said approximately 5/8 inch per 100 yard each click, it complicated the mental calculations for the 25 meters I was shooting since it is not 1 inch per 100 yards etc.

Long story short. 
100 yards = 300 ft   25 meters = 82 ft  82/300=.2733 factor at 25 meters
Convert 5/8" to decimal = .625" each click per 100 yds.
.625" x .2733 = .1708" per click at 25 meters

Sight ajustment for 3/4" on 25 meter target - convert to decimal, .75"/.1708" @ 25 meters = 4.4 clicks

Handy and less stress if you have a calculator and you can use the magic number .1708" per click @ 25 meters after you determine that you have to move POI 2.5 inches at 25 meters - now quick, how many clicks is that?

2.5" / .1708" = 14.6 Clicks


Maybe some superfluous decimal places in the above calculations - make the magic number .171 or .17 for clicks on TS-200 sights on a Ruger 10/22 at 25 meters.
Starve the collective (Ref: Starving the Monkeys, Tom Baugh) and
restore the Constitution.

He is a fool who knows not that swords were given to men, that none might be slave, but such as know not how to use them..
Algernon Sidney
Discourses Concerning Government
Ch. 2, sect. 4, p.343

Junior Birdman

  I actually shot a "box" pattern with mine abd it comes out to exactly .8 MPOA per click for the 22" barrel.
"But a Constitution of Government once changed from Freedom, can never be restored. Liberty, once lost, is lost forever." John Adams

Find out just what any people will quietly submit to and you have the exact measure of the injustice and wrong which will be imposed on them. Fredrick Douglass

colycat

We have been using 1 moa = 1 click on the carbines.  Seems pretty close.  These are the T100's
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100