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How to figure clicks

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Unread 11-06-2012, 11:29 PM
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Join Date: Oct 2009
Location: Thunder Basin, WY
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Re: How to figure clicks

Originally Posted by Wheatgerm View Post
I want to add to this question?

My millet scope is 1/4 inch at 100... I have the strelok app on my phone. It gives me moa, mrad (reticle), clicks, and inches of drop. If I look at the moa vs my scope it kindof makes sense. But for example at 600 yards it says to adjust 7.96 moa or 31.8 clicks for 50 inches of drop? The numbers don't really match up in my head and I THINK ill go off the moa measurement for my scope but am not sure. Could someone add to this?
What needs to happen first and foremost with any scope intended to be dialed for range (after load development and before shooting at long range), is to confirm our clicks are the exact amount advertised, or at least figure out how much the real movement is. Alot of them are slightly off from advertised by time we dial in enough clicks to make a LR shot.

Example; last one I did was .375 IPHY instead of the advertised .36 IPHY

We can simply set up a tall piece of cardboard at exactly 100 yds.
Shoot 2 at a bullseye on the lower portion of the board.
Dial up 20 MOA worth of clicks on the scope.
Shoot 2 at the same bullseye you shot before.
Measure the distance between the centers of both groups with a tape measure or yardstick. Hopefully this is vertical too or the scope needs canted.

So wheatgerm in your case, you'd take the measured distance from the target and divide it by 80 clicks that you dialed to figure your true inches per click.
After that, we simply use what option the program gives for what is closest to our real and true click values. In my example, 1/10 mil was closest, but I was able to put in a custom click value to match even better.

Hopefully this isn't too confusing, never claimed to be a writer.
In your question, you asked about 50 inches of drop at 600 yds.
A true MOA is not 1" at 100 yds, but 1.0472" at 100 yds.
1" at 100 yds is IPHY or Shooters MOA.

So, 50 / 6 = 8.33 IPHY
or, 50 / 6 = 8.3333/1.0472 = 7.958 true MOA
or, 50 /6 = 8.33/3.6 = 2.3 Mils

So round about back to where we started, we need to know first off just how much our particular scope is really moving when we click it, because they rarely specify if it's IPHY or true MOA when they say 1/4" per click. It's the small fractions off of that amount that add up to a bigger number after we dial alot of clicks.

Seahawkkid, this click test should also be done on your scope. especially with it being 1/8 per click. It takes you twice as many clicks to get the same drops doped out as wheatgerms scope. So, any difference from advertised is doubled in your case. However, the errors or differences may be smaller.

Appears I was typing same time Joe King was.
Aim small = Miss small

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Unread 11-07-2012, 01:04 AM
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Join Date: Jul 2010
Posts: 25
Re: How to figure clicks

Thanks to everyone for their help.
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