Adjusting a mil scope

[DLT]

I’m going to try a mil scope for the first time. I know it’s going to take a little time to get used to it but I do have 1 question right off the bat. Say I shoot at for instance 500 yards and I impact off the paper to the right 3 mils but I want to dial my scope instead of holding 3 mils how does that math play out ? If it’s a ignorant question please forgive me

 

[Eagle Six]

Dial 3 mils of correction.

 

[ShtrRdy]

Assuming the scope has a mil vertical AND a mil turret, you can simply dial 3 mil.

Try not to get to confused with mil-radian. It is a method of measuring an angle. "Minute of Angle" is a way of measuring an angle.

Both methods can be used with inches, yards, meters, centimeters, etc.

 

[DLT]

Dial 3 mils of correction.

Assuming the scope has a mil vertical AND a mil turret, you can simply dial 3 mil.

Try not to get to confused with mil-radian. It is a method of measuring an angle. "Minute of Angle" is a way of measuring an angle.

Both methods can be used with inches, yards, meters, centimeters, etc.

Yea it is and in 1/10 mil increments. So it would be thirty clicks correct

 

[Eagle Six]

Yes. With the assumption that your scope is a first focal plane. I have never seen a scope with .1 mil turrets that wasn't a FFP, but I haven't seen them all.

 

[DLT]

Yes. With the assumption that your scope is a first focal plane. I have never seen a scope with .1 mil turrets that wasn't a FFP, but I haven't seen them all.

It is. Thank you

 

[Eagle Six]

If that adjustment wasn't hypothetical rather actual, that was a pretty healthy left crosswind!!

 

[Coyotefurharvester]

29.3 inches, 5.6 moa, 1.6 mils 500 yard 10 mph wind adjustment for 22-250.

 

[Eagle Six]

I did it quickly in my head and rounded it off to 54 inches.

 

[DLT]

I did it quickly in my head and rounded it off to 54 inches.

I just a little confused because when were shooting steel for fun at distance if I can’t see it I rely on the spotter in the spotting scope and he’s calling out either by amount of the target I’m off or in inches so I have to figure out how much or about how much to dial my scope. And it didn’t have fine increments

 

[Eagle Six]

Yeah, I've had some spotters over the years that were mediocre at calls and a few I was in tune with. Assuming your spotter doesn't have subtensions in their spotting device that match your scope and they are giving you inches off of target center, you are making the correction adjustment call yourself. 1 mil at 1,000 yards is about 36 inches. Your example was 500 yards where the mil would equal half, or 18", it's simple math to multiply 3 times 18" = 54". Most likely the spotters call is going to be their estimate based on their ability to estimate! If the distance is in equal 100 yard increments the math isn't too bad. If the distance is something like 734 yards, then it gets a little tricking to it in your head. A calculator with a function memory will work out pretty good, but that is time consuming. Regardless, practice should refine your method and produce improved results, just like estimating what the wind does to the projectile flight path. If we can see the bullet trace/impact it gets a lot easier and quicker using the scope reticle substensions to make hold over's or turret twist. In my scope it needs to be up at 15x before I can see those little lines on the Christmas tree!!

 

[DirtySteve]

If he is calling it out in inches just divide by .4 or .5 and make the adjustment. .1 mil is .36"so .4" is close enough for steel. and .5" is very easy to figure.

 

[Coyotefurharvester]

It doesn't matter if the turret is in inches,moa,MIL at 100 yards. All is an angle of distance correction. My reference wind correction of 29.3 inches @500 yards results in 23 clicks(23.440 rounded) for 1/4 inch or 1/4 moa at 100 yards. 16 clicks(16.278 rounded) for a .1 MIL at 100 yard turret. As you can see the MIL turret is "coarser".

 

[Eagle Six]

Well that's kind of down and dirty.....Steve. However, if he needs 3 mils at 500 yards, his POI was off 54" and 54 divided by .36 is 150, or divided by .4 is 135, or divided by .5 is 108. Something else is missing I think.

 

[Eagle Six]

It doesn't matter if the turret is in inches,moa,MIL at 100 yards. All is an angle of distance correction. My reference wind correction of 29.3 inches @500 yards results in 23 clicks(23.440 rounded) for 1/4 inch or 1/4 moa at 100 yards. 16 clicks(16.278 rounded) for a .1 MIL at 100 yard turret. As you can see the MIL turret is "coarser".

His reference was 500 yards and about 54" of drift right.

 

[whatsupdoc]

Forget all the linear measurements, your scope does not use them and neither should you.
No reason to convert to anything else, pointless.

If you are using a FFP Mil scope you have everything you need to make corrections in your
view.

If you shoot at a target (the distance is also irrelevant) use the retical graduations to measure from the point
of aim to the point of impact and then use that measurement to dial or hold the correction.

So if your impact is 3mils to the right you would need 3mils to the left correction.

I personally dial elevation and hold for windage as windage constantly changes.

 

[Coyotefurharvester]

Yes 3 mil @500 yards =54 inches or 30 clicks on his 1/10mil at 100 yard turret. Since he asked what turret adjustment to make instead of a reticle hash hold correction.

 

[whatsupdoc]

Yes 3 mil @500 yards =54 inches or 30 clicks on his 1/10mil at 100 yard turret. Since he asked what turret adjustment to make instead of a reticle hash hold correction.

Its a 3 mil correction either hold or dial, it is not 54 inches there is no inches on the target, turret or reticle.

 

[Eagle Six]

Yes 3 mil @500 yards =54 inches or 30 clicks on his 1/10mil at 100 yard turret. Since he asked what turret adjustment to make instead of a reticle hash hold correction.

I'm not sure where the "100 yard turret" is. His turret isn't 100 yards, it's simply mils in .1 increments.

 

[Eagle Six]

If you shoot at a target (the distance is also irrelevant) use the retical graduations to measure from the point
of aim to the point of impact and then use that measurement to dial or hold the correction.

So if your impact is 3mils to the right you would need 3mils to the left correction.

His example is in reference to better understand adjustments for his scope, when his impact was not detected by him rather his spotter, otherwise I agree with your excellent post. he also mentioned difficulty in seeing the subtensions, so may need to increase power. that of course reduces field of view making it more difficult to detect bullet impact that are far off target.