2.3"-2.5" at 800m, you're saying?
What App are you using? I've only looked at a couple of the free ones offered for Android and haven't purchased anything yet. I'm not sure that Strelok is able to use absolute/station pressure - when setting up the 'weather' in the free version, there are only boxes for "Pressure", "Altitude", and "Temperature", and no information on what kind of pressure measurement it's expecting.
I'm also trying to choose a ballistics app, and I really like the Strelok has the ability to differentiate zeroing weather from current weather. The app I'm using which has JBM's ballistic engine is called BallisticsARC, but doesn't have the ability to differentiate zeroing weather from current weather. Is this a standard feature in any of the pay versions of Strelok, or Applied Ballistics?
No that was for 1000 yards, using a different Bullet, But using my preferred bullet At 1000 yards @ 100% humidity I get a drop of 338.6 inches and at 0% humidity I get a drop of 341.7 inches that is a 3.1 inch variation.
AT 800 metres = 874.89 yards @ 0% humidity Drop = 236.2 inches,, AT 100% humidity Drop = 234.4 inches, that is a 1.8 inch variation
One thing you will notice is that like everything else when shooting the further it gets the worse the effect. The difference between 800m/874.89 yards and a 1000 yards adds up to a 72.22% variation of the drop value for what it is at 800m/874.89 yards, Meaning that The Extra 125.1 yards has added 1.3 of an inch of Drop which is a lot more than an Inch.
Yes with Strelok Pro you can Adjust the current Weather and the Zeroing Weather and Also the Powder Temp, With Strelok Pro you can Adjust anything if you need to but it is so simple, if you have used the normal version then the Pro version will be a breeze.
I have used them All and I have about 10 shooting Apps, But the best Laid out App is Strelok Pro and you can change all those features you mention and more, when you Click on the weather panel on the left hand side of the first screen, it opens up and there is a tick box that says " Use Density Altitude " OR once you have opened the screen you can change the TEMP, PRESSURE, HUMIDITY and the POWDER TEMP.
Strelok Pro has all your favourite features of the free versions But is has a lot more useable features and Huge Bullet / Cartridge Data Bases and expanded Scope choices, There is nothing that you cant do with it and yet it is Oh So simple and they have put the Drop screen the right way up ( Starting ) At Zero at the TOP. and you can Save and Store a Huge amount of Rifles and each Rifle can have many Cartridge Choices save under that Rifle.
One of the best things is that If I have a problem I send the man a message and he fixes it, I sent him a message and he got straight back to me and released another Up Date within 10 or 20 Minutes of our conversation, and That was just Last Month. He is a truly Great Person and extremely helpful.
I started using Strelok about 3 or 4 years ago and then bought Strelok + and that was really good So I went and bought Strelok Pro as well and it was amazing even back then but it just keeps getting better and better, I have about 10 Shooting Apps on my Phone and about 15 or 20 in my Play store Account But I only use Strelok Pro and the Bushnell ConX App because I need it for the range finder and the Kestrel App to use with the Kestrel, But Strelok is my Go To APP
I started using Strelok when it was first born and many people shy'd away from it, But now many have embraced it and do extremely well with it and since those days it has spread like wild fire.
Hope this helps,
John.