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Can anyone tell me how the conversion is with a scope that adjusts in MRADs to MILs
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They are the same thing. A Mil is nothing more then a MRAD under a different name.
A mil is nothing more then 1000th of a Radian.
To find out what a radian is you take the length of the radius of a circle. Then from the point where the radius hits the edge of a circle, measure that the same distance along the circumstances, then back to the center of the circle, making a triangle with three equal lines each of which is the length of the radius.
Now you divide that triangle by 1000 and that gives you mil-radians, mil-rads or Mils.
Scopes normally come with MOA or mil adjustments. With a MOA scope you get 1/2 or 1/4 or 1/8 MOA clicks with 1/4 being the most common.
Mil adjusting scopes come in 1/10 mil clicks.
With the MOA scope, each click moves the point of impact 1 inch (to be more precise, 1.047 inches) 1/4 click will be 1/4 or .25 inches.
A .1 mil click will move the impact 1/10 of a mil at 100 yards.
So if 1 mil = 3.348 inches, then .1 mil will move the impact .3348 inches.
Since its simpler to say and remember 1 MOA is an inch, then 1/4 MOA is 1/4 inch, THEN we can also make it easy to say .1 mil is 1/3 inch at 100 yards (.3348 is pretty close to .333 1/3)
The real formula is "kiss" (Keep it simple stupid) no offense to anyone,thats the expression.
Yes I know its not exact, and many people chime in and say its not 1 inch its 1.047 inches.
Thats true, regardless what we say, we all think in inches or "1" not "1.047.
But if you were to actually measure the clicks on your scope, even expensive ones you'll find out they aren't accurate either. They will be a little more or a little less then 1.047.
The same thing with mils and a 10th of a mil. 1/3 of a inch is close enough and probably every bit as accurate as your scope's clicks.
Don't believe me, Take a 4 ft piece of paper, draw a line down it with an aiming point at the bottom. Zero your rifle to hit that aiming point. Then count up clicks and shoot, watch as your bullet impact moves up the line. You'll find they don't move exactly 1/4 inch or 1/10 mil.
Also you'll find that the higher you move up, the different each click will be, up or down.
You'll also see the impact drifts left to right of the line. It may be the scope, it may be the rifle, it may be the shooter or it may be a combination of each.
That's why its critical to zero your rifle and write it down in a data book. Use a BC Program but confirm it by shooting, WRITE DOWN the corrections.
No zero at any yardage is correct until you shoot it to confirm it.
So back on topic. 1 mil is 3.348, 1/10 mil click is 1/3 inches.
and 1 moa is 1 inch , 1/4 moa is 1/4 inch
Forget the 1.047 and forget .3348, you'll never see the difference on target.