Dialled in shooting

The Singing Stalker

Well-Known Member
I am trying to get my head around dialling in for shooting. Ie scope is zeroed at 100 yards, so how many clicks for 300?
anybody put me to a “dialling in for idiots” site?
I known it is different for calibers but want to read up on the basics before going to the range.
probably be using my 243 if anyone is interested, mainly because it has a bipod.
 
I am trying to get my head around dialling in for shooting. Ie scope is zeroed at 100 yards, so how many clicks for 300?
anybody put me to a “dialling in for idiots” site?
I known it is different for calibers but want to read up on the basics before going to the range.
probably be using my 243 if anyone is interested, mainly because it has a bipod.
Quite a lot....metric scope?
 
You will need to know the muzzle velocity for the particular bullet before you start. Plenty of good apps will give you the clicks you need. I you have an android phone ,go on play store, Strelok is good. I use Shooter. PM me if you want
 
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You need to start with the scope you are using.

MOA or MilRAD? MOA are in inches and the distance is yards. MilRads are mm and the distance is in metres. Don't ask me how I learned that expensive morning on the range...

1/2 clicks? 1/4 clicks?

Then worry about bullets weights and velocities.

Apps are fun but you need to see "fall of shot" to know what is actually happening.

Don't even go there with weather, rotations of the earth, your lucky "sniper pants" - the list is long.
 
I have my .243 on asv and it’s brilliant
i set mine up the hard way, zeroed at a hundred, then shot at 150, adjusted the asv thingy until I got it right then 200 same as then 250 and 300, absolute waste of time & ammo, but the rifle now shoots absolutely bang on the button at any range, I now understand 100% and it was a good exercise and fun doing it

you can use the apps etc etc, but make sure you know your rifle prior to doing it
 
Scopes are not "imperial" or "metric", they simply use 2 different methods of measuring/displaying angles: degrees or radians.
Neither degrees nor radians are metric or imperial
It just so happens that one minute of angle at 100 yards is approximately one inch and 1 milliradian at 100 metres is exactly 10 centimetres.

Cheers

Bruce
 
It just so happens that one minute of angle at 100 yards is approximately one inch and 1 milliradian at 100 metres is exactly 10 centimetres.
And it was this point I was trying to (rather clumsily) make.

The confusion (to which I have now added) can come with a scope that is in MilRAds and giving "cm" clicks for meters distance when you are on a range which is measured out it yards.

Well it confused me for a morning...:-|
 
I totally agree that it can be confusing.
I recently bought a scope to go on a rifle for longer range vermin control and gongs.
The dials are marked in 1/10 mil increments - which is 1cm at 100m, or 0.9cm at 100 yards
I made up targets using MS word which have a 1cm grid and use them to zero at 100m and another version with a 0.9 cm grid which can be used on a 100 yard range.
in each case 1 click equals 1cm.

Cheers

Bruce
 
The 'easiest' or most accurate way of getting your vertical adjustments at 100m 200m 300m etc is to go shoot those distances and make a note of the clicks (corrections) you had to dial on your scope to hit your target

This is commonly known as ''dope'' which stands for Data observed from previous engagements' or something equally roughty toughty

If you can't find a range to actually shoot those distances then you will have to rely on ''Data''

'Data' is information gained from applying ballistics curves and/or ballistic solvers like Strelok or Strelok Pro or Applied Ballistics etc etc

Often referred to as SWAG (Scientific Wild Arsed Guess), the information you get from your ballistic solver is only as good as the information that you feed it

Crap in = crap out

at the very least you must provide the app with

Muzzle Velocity
Drag coefficient
Height of 'centre of scope' above 'centre of bore'
Scope click value (hence all the comments above about whether your scope measures in Mils or MOA and by how much does one click adjust POI at a given distance) (if you go the dope route you don't care about all that coz you have got your click adjustments empirically)
Zero range

If you want to get a bit frisky you can add

direction of twist
twist rate
(the App will ask what calibre, bullet type what weight you are using so that it can look up your drag coefficient for you)

If you want to disappear into the world of the OCD

Then add atmospheric info like

Ambient temp
Humidity
Altitude
Latitude
Direction of shot
Wind direction and speed

Clearly you can't guess these variables yourself so you would need another gadget (yipee) - like the Kestral 5700 which measures all this stuff for you

Really clever ballistic apps like applied ballistics (which you will find in the kestral) will take all of the above and give you a solution based upon 'distance to target' and 'direction of shot' (yup now you need a range meter) and provide you with a solution

That gives you your click adjustments for range

Now the wind !!!

Judgements for wind is a black art that I've yet to get even close to getting right

Applied ballistics, together with the Kestral 5700 will give you an approx answer to this conundrum too

It is often wrong though as the calculation is based upon wind speed and direction at the kestral - usually at the shooters position - it has no idea what the wind is doing down range

Fortunately for shortish ranges of 100m to 400m the wind at the shooters position is usually adequate

Consfused?

I am !
 
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I am trying to get my head around dialling in for shooting. Ie scope is zeroed at 100 yards, so how many clicks for 300?
anybody put me to a “dialling in for idiots” site?
I known it is different for calibers but want to read up on the basics before going to the range.
probably be using my 243 if anyone is interested, mainly because it has a bipod.
Here goes:

Dialling in corrections means you have to know all the variables in advance.
Those variables are :
Bullet weight
Bullet ballistic coefficient
Muzzle velocity (actual, as in read by a chrono)
Height of scope above bore
Zero range

It's no good estimating, or reading MV off the box of ammo, and variations in scope height will affect the ballistic App's calculations quite significantly.

It matters not a jot whether you use MOA or Mrads, both work just as well, but the key is consistency, so mixing and matching imperial and metric range measurements for example will only lead to tears.......

Your ballistic App (in your case strelok) will save the variable values in the list above and use them to calculate how much the bullet will drop over different ranges.


Once you have input the variables, you can ask the app to give you a dope chart usually in 100m intervals, but you can change that to 50 or 25 m intervals. If the range is imperial, make sure you tell the app that you want solutions in Yards.

Nothing works as consistently as real life, so once you have a dope chart of solutions, go and confirm at real targets that the corrections they suggest are accurate. If they vary, it'll be down to atmospheric or other conditions, but they'll be a reasonable "starting point" and you can write down the actual corrections needed for future reference.

Have fun.
 
I set mine up the hard way, zeroed at a hundred, then shot at 150, adjusted the asv thingy until I got it right then 200 same as then 250 and 300, absolute waste of time & ammo, but the rifle now shoots absolutely bang on the button at any range, I now understand 100% and it was a good exercise and fun doing it
That is exactly what it was/is not! I wouldn't dream of relying an a computer to tell me how many clicks.

K
 
100 grain soft point factory round shoots perfectly for me, IT skills are not my idea of getting a rifle to shoot accurately it took a definite longer time and ammo but i’ve got the clicks required from 100 to 300 in my head ( and on paper) and importantly i now know how to work the scope for accurate shots 100% i never thought i would ever dial up a shot, but i done it the way i can understand and use,the zeiss V8 is a real decent bit of kit, and 100%
 
They absolutely are.

What I was trying (and failed) to convey was the 'movement" is given in mm/cm.

The scope on my AI (for example) gives 1cm clicks at 100m - 10cm clicks at 1000m

The scope on the Sako gives 1/4 MOA clicks - so 1/4" at 100 yards etc.
Oh god, not this again ffs.
 
Right to get you going....

I am assuming a) you are shooting 243 with something like a Sierra Gameking 100gr bullet going at 2950 fps

Plugging this into JBM - Calculations - Trajectory. Wind is 10mph true crosswind, just so you know. The rest is bollocks !

In mil your drops will be (assumes mil scope so 1 click is probably 0.1 mil so 10 clicks for 1 mil on the turret)

Screenshot 2021-09-14 at 18.36.01.png

Same thing in moa (4 clicks per 1 moa on your turret)....

Screenshot 2021-09-14 at 18.39.48.png


These will probably be a bit out, but you can just skip all the nonsense in getting here (and posted above), shoot and tune the clicks so you have the correct values for your ammunition with your rifle and your scope and your shooting. Change any of them and you will need to recheck. Before you start make sure your zero is correct and is at 100 yards.

If you are doing something radically different then pm me and I will rerun this.

There is a lot to this stuff but if you really want to learn you can have a dig around on snipershide.com or even better sign up to their online training. It's more than you need but at least you will learn properly.

In case you want to have a go at the above calc yourself here is my input page:

Screenshot 2021-09-14 at 18.51.45.png
 
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I can thoroughly recommend this book. It is very easy to understand and explains everything you need to get started in long range shooting.


 
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