Thread: Another custom scope turret label

Originally Posted by longrange308

Mite be a tool question but what are you all doing for atmospheric conditions
Ie say label is set for 500 above sea but then you want to go 1500 above sea

New label or ?

Set air pressure for the average of your hunting weather encountered ie 28 inhg

Altitude is irrelevant as an inputted value compared to actual/absolute air pressure.

Yep, either average your air pressure for your usual hunting areas, a different label for specific conditions or have MOA printed on the label also so that you can input data into a ballistics programme and dial accordingly.

How about some tapered turrets???? No problem, once I sorted the maths.

Awesome work, can't wait to play with them

The straight set will go on the smallbore rifle and these on the fullbore.

Originally Posted by Matt2308

Yep, either average your air pressure for your usual hunting areas, a different label for specific conditions or have MOA printed on the label also so that you can input data into a ballistics programme and dial accordingly.

Spot on Matt. Ive spend time sorting what air pressure i should out for my own label. Ive also added MOA to it so i can run from a ballistics app if i need to at some stage

Originally Posted by Uplandstalker

Spot on Matt. Ive spend time sorting what air pressure i should out for my own label. Ive also added MOA to it so i can run from a ballistics app if i need to at some stage

Looks good.

BDC plus cheat-sheet eliminates the need for ballistic apps in changing conditions.
Just pre-calculate the DEVIATION from your BDC.
Then you can look at the weather and say "ok, today I dial range + 2 clicks..." and you'll be spot on and much faster than a ballistic program

Here's how to setup your BDC to work inside your weather range.

I made one with the right size socket that fitted over my turret and label maker sticker
worked for the time i needed it to

Originally Posted by Uplandstalker

How about some tapered turrets???? No problem, once I sorted the maths.
Attachment 48827
Attachment 48828

Nice! It was a real bastard working this out for my HD5:

Originally Posted by chalkeye

Nice! It was a real bastard working this out for my HD5:
Attachment 49017

Always happy to share:
R1 = (C1(R1-R2))/(C1-C2)

where:
C1 = D1xpie
C2 = D2xpie
R1 =Radius@D1
R2 =Radius@D2

Who said maths wasn't going to be helpful in real life?

Mmmmm pie... Coulnt resist

Originally Posted by Uplandstalker

Always happy to share:
R1 = (C1(R1-R2))/(C1-C2)

where:
C1 = D1xpie
C2 = D2xpie
R1 =Radius@D1
R2 =Radius@D2

Who said maths wasn't going to be helpful in real life?

I "simply" made a model in 3d and unwrapped it as a 2d surface. Maths would be probably be simpler, but modeling is fast for me.

Originally Posted by Uplandstalker

Spot on Matt. Ive spend time sorting what air pressure i should out for my own label. Ive also added MOA to it so i can run from a ballistics app if i need to at some stage

I'm guessing that the different layers of the ranges are for different turret revolutions. Do you find you ever forget to turn the turret back and forget what revolution you are on?
Those Burris C4s are awesome scopes, way better than they should be for the price.

OK, I'm not going to add tapered turrent to my app...uplandstalker wins!

Originally Posted by Beetroot

I'm guessing that the different layers of the ranges are for different turret revolutions. Do you find you ever forget to turn the turret back and forget what revolution you are on?
Those Burris C4s are awesome scopes, way better than they should be for the price.

I brought mine in the US while there for work. Worked out about NZ $420 at the time. About doible that here.

Yes, different layers are for each revolution and also have the zero stop information printed on it. "Zero 28 minutes from the top"