Rifle Scopes Quick and Easy Scope Reticle Tracking Method....?? Opinions or Thoughts from Members

[mikeinfwa]

I've read other threads offering advice for confirming reticle click value where the distance must be exactly 100 yards or easily divisible distances (25 or 50). While some say the distance should be multiples of 100 meters for mil/mil scopes.

My thinking is since a mil is a mil is mil the distance to your 'target' is irrelevant.
All that is needed is a firm non moving scope and a simple non moving aimpoint/reference.



Today, I performed a scope tracking test with both my Weaver mil/mil and the IOR (mil/moa) scope today from my kitchen counter.

Placed the rifles individually on a cleaning rack while aiming at the fence post approximately 50 yards out. (the distance is not important)

Zeroed the scope on the top of the post.

rotated the scope elevation counting the clicks for each 1 Mil reticle movement. (Using the top of fence post as initial reference point)

Weaver Scope dead on accurate each mil reticle movement required 10 clicks

IOR however required 16 clicks/mil reticle movement.

First Mil = 16
Second Mil = 32
Third Mil = 48
Fourth Mil = 64
Fifth Mil = 80

This equates to a click value of .0625mils

Using my Mil dot Master slide rule (old school) I calculated the MOA to be .215

So it appears my IOR scope is neither a .1 or .05mil nor an accurate .25 moa click value scope...

Input appreciated....

Mike

 

[SomeOtherGuy]

This sounds like a good method within its limitations. I see those limitations as:

1) You are measuring the accuracy of both the adjustments and the reticle at the same time. When you get an error, you don't automatically know if the error is adjustment tracking, or reticle calibration.

2) For this to be accurate, both the reticle and the adjustment have to be absolutely vertical. If one or both of them are off, you won't have an accurate result.

 

[mikeinfwa]

This sounds like a good method within its limitations. I see those limitations as:

1) You are measuring the accuracy of both the adjustments and the reticle at the same time. When you get an error, you don't automatically know if the error is adjustment tracking, or reticle calibration.

2) For this to be accurate, both the reticle and the adjustment have to be absolutely vertical. If one or both of them are off, you won't have an accurate result.

Thanks for the reply...

I totally failed to think in regards to confirming the reticle dot spacing. I was mistakenly assuming the reticles were always accurate and that its the click values that are misadjusted/wrong.

It's fair to say you could have accurate clicks but improper spaced mil dots.

Mike

 

[Killswitch Engage]

I built this to lock scope down and be able to accurately run it through out its range of adjustment. When using a precisely measured and marked target up to 20mils you will quickly know if the reticle and adjustments are correct.

 

[SomeOtherGuy]

It's fair to say you could have accurate clicks but improper spaced mil dots.

Yes. You could have both clicks and reticle off, but in opposite directions making you think you have a larger click error. Or they could be off in the same direction, causing you to think everything's perfect, when it's not.

 

[kansas]

I built this to lock scope down and be able to accurately run it through out its range of adjustment. When using a precisely measured and marked target up to 20mils you will quickly know if the reticle and adjustments are correct.

I like your fixture. Should be solid enough.

 

[idahoorion]

Mr Killswitch, Perhaps you should go by Mr. Overkill-switch Engage, On the basis of your affinity for big iron of course. Lol
Looks functional though, as long as I don't have to carry it.
Idahoorion

 

[Killswitch Engage]

Lol ok.. I may give you that one but I wanted solidness in my test set up.

 

[AK Sgt Maj]

I have found that very few scopes click adjustments are exact. What I want is a scope that repeats, the same click adjustments for whatever distance I am shooting at, especially for further distance I am shooting. So I have sight settings for different distances, and when I put the number of clicks for the distance and conditions, it will always hit where I aim. I use zero cards for each of my rifle/scope, with a 200 yard zero and shoot out to 1000 yards. If your scope will do that and the click adjustments are not exactly .25 MOA, or .001 MRAD or whatever, it doesn't really matter, just like most charts do not come out exactly for most rifle/scope combinations.
Just my thoughts.