My tactical scope weakness *clicks*

[ceriksson]

Ok I have a tactical scope. I haven't had it for long and am still getting used to shooting the rifle it is on let alone learning how to really use my scope to its full potential.


I know how to mildot range using the reticle, but what I am really having trouble with is learning how to translate that yardage into the turret knobs of my stock.

What is the trick, calculation, to know how many clicks you need to do in order to rezero my target?

I know how to do it at 100yds when it is 1 inch to 4 clicks. (1/4 clicks)

But what about at other ranges? how do I figure it out in a way that I can learn and use in the field easily.

Don't even get my started on windage, that I have no clue about, how to translate windspeed into clicks.

 

[Skullboy]

Here are the click values for the different ranges in yards:

100 - 1 clk = .25"
200 - 1 clk = .5"
300 - 1 clk = .75"
400 - 1 clk = 1.0"
500 - 1 clk = 1.25"
600 - 1 clk = 1.5"
700 - 1 clk = 1.75"
800 - 1 clk = 2.0"
900 - 1 clk = 2.25"
1000 - 1 clk = 2.5"

This is based on having a scope with quarter minute adjustments.

SKBY.

 

[Long Range Canuck]

PM coming with I hope the answers to your question in detail. In short and laymans terms.

1"=1 MOA (minute of Angle) @100yrds....at 200yrds one MOA or 1" is 2" and so on at 1000 yrds One MOA is 10".

If your scope is laid out in Miliradians or 3.6" between dots the easiest way to use it for MOA adjustment is to figure it as 3.5". So if you shoot at a target and see your impact is 1 Miliradian low (3.5") at 100 yrds you would adjust your come-up 3.5" or 3.5moa. That is how it works in its simplest form. And works for adjusting windage also if it is a miliradian type scope. MOA scopes such as Nightforce and a few others use an MOA rectical usually 2MOA between dots or hash marks. but the math is basically the same. As I said more indepth info on the way. Let me know if it helps.

 

[Levi Garrett]

Best to read about it on google, but its much more simple than it looks. The only thing to watch is the full rotation, don't be one of those out , kinda messes your shot up a tad. Just zero the turrets to whatever range you care to, then its all up and down side to side from there.
As for the windage, you will learn what kinda wind to put in, depending on range to tgt, and wind speed. I normally put in lets say 1/2 minute 2 min , whatever gets me in close to center, then use the mildot for final tweak. Wind gusts may require you to take an average, set that, and proceed to the mildot again.
Once you get into it , its easy, just remember that full turn , be on the correct setting for the range. Have a go at the simulator thread ,link I put up.

 

[ceriksson]

Ok, but what about figuring out how many clicks to zero on a new range rather than rezeroing the rifle after making the first shot?

Basically. I have my rifle zeroed at 100yds and I see a target at 250yds. What do I do to figure out how many clicks to zero at that range?

I've been playing a lot with the link you sent Levi, and I find it helpful at learning how to rangefind, but I am having trouble getting the target centered using the turrets.

 

[Skullboy]

Ok, but what about figuring out how many clicks to zero on a new range rather than rezeroing the rifle after making the first shot?

Basically. I have my rifle zeroed at 100yds and I see a target at 250yds. What do I do to figure out how many clicks to zero at that range?

I've been playing a lot with the link you sent Levi, and I find it helpful at learning how to rangefind, but I am having trouble getting the target centered using the turrets.

It is best to actually go out and shoot at the different ranges and record what your adjustments are for those ranges.

Example:

100 yard zero

Shoot at 200 yards and adjust scope as needed (helps to have someone spotting for you).

Record how many clicks up from your zero it took to be hitting where you want at 200 yards.

Do this with the various ranges you want settings for.

SKBY.

 

[Levi Garrett]

I've been playing a lot with the link you sent Levi, and I find it helpful at learning how to rangefind, but I am having trouble getting the target centered using the turrets.

Use the arrow marks on the sim for the mildot/to tgt, and the keyboard up/down, side to side for turret turning think I got that right

 

[ceriksson]

Use the arrow marks on the sim for the mildot/to tgt, and the keyboard up/down, side to side for turret turning think I got that right

I didn't mean practically on the computor lol, but just how to figure out how many clicks it takes to zero at that range.

It is best to actually go out and shoot at the different ranges and record what your adjustments are for those ranges.

Example:

100 yard zero

Shoot at 200 yards and adjust scope as needed (helps to have someone spotting for you).

Record how many clicks up from your zero it took to be hitting where you want at 200 yards.

Do this with the various ranges you want settings for.

SKBY.

You're probably right. I learn the best kinetically anyway, just thought I could do some learning then have some knowledge before I hit the range. (and save some $$ on ammo)

 

[Long Range Canuck]

The only way to know what your rifle/ammo combination will do at any range is to shoot it and record it. If you change up your ammo regularly your points of impact will change, thus your zero is changed. You can use ballistic software to get you close to comeups and go from there but remember every rifle/ammo combination shoots differently. If you reload and keep things consistant its a walk in the park. I zero at 100yrds and record in increments of 100yrds out to 300yrds...after that I record in increments of 50yrds out to 1500yards. Now I know if say I use my laser range finder and get a range to target of 500 yrds I know I have to dial in 9.5 MOA to engage the target. because I've been there before and have it recorded. One shot Tactical has a neet rig called a scope dope. A balistic card that fits in your scope caps for you to write down your come-ups out to 1000 yards for quick reference. Handy tool that is always right infront of your face. Shoot it, record it and then you have it. plus the practice will improve your shooting skill.

Just an opinion

 

[Mystic Precision]

To answer the second question, in order to know what adjustment you need to hit at different distances you need to make a drop chart/table.

Simply input your bullet data into a ballistics program (internet free stuff works well - JBM). You generate approx come ups.

Go into the range or field with your rangefinder and start confirming what your 'real' come ups are. I like going in 50yds increments out to 500yds then 25yds as far as I want to go.

You don't need to shoot every distance, just 4 to 6 over as large a distance as possible. From the real world come ups, you can adjust the ballistics program for the rest of the come ups needed. Bullets fly in a predictable curve so if the scope and rangefinder are consistent, 4 to 6 points will define the ballistic curve for all distances.

Ultimately, it doesn't matter if the come ups you get don't agree with some one elses. It rarely does due to difference in your load, and scope.

As long as it is consistent and repeatable, it doesn't matter.
Jerry

 

[Barks]

As taken from my Ultimate Sniper Manual for adjusting for windage......I found the USMC method the easiest to remember

The USMC has been using this method since the days of the 1903 A3 Springfield. After detemining wind direction and speed, use the following formula..

Range in 100yards X Speed in MPH = MOA
_______________________________ Windage
15 (math constant)


For instance, Your target is 300 yards away, and there's a 10 MPH wind:

3x10 = 30
__________ = 2 Minutes of angle
15

Now just click in 2 MOA, hold into the wind and aim dead on. This is a great formula out to 500 yards. After that the math constant should increase as follows

600 yds - devide by 14
700 yds - devide by 13
800 yds - devide by 13
900 yds - devide by 12
1000 yds - devide by 11