Strelok Pro. Ballistic calculator for Android

Strelok Pro

Ballistic calculator for Android


Supports Android from version 2.3

This is a smart ballistic calculator. It can use G1, G7 and... custom drag-functions!
Can calculate trajectory without using ballistic coefficient!
Can calculate spin drift, Coriolis effect, gyroscopic stability factor, Coriolis effect and vertical deflection of crosswind.

1184 bullets database + 411 bullets with G7 ballistic coefficients
2520 cartridges database

You can select reticle from the list (822 reticles!) and see holdovers (see list of reticles supported)

Supports bluetooth connection with Kestrel weather stations.

Supports imperial and metric units.

FYI: MILs and MRADs - this is the same

Field-proven accuracy since 2007

Screenshots

To install, go here: https://play.google.com/store/apps/details?id=com.borisov.strelokpro

Getting started

Configuring and tuning Strelok Pro [Android]

Reticle view explanation

Using Weatherflow WEATHERmeter

 

Here is a video from users of Strelok Pro:

 https://www.youtube.com/watch?v=22FEEkCNP4U

https://www.youtube.com/watch?v=8IgO8zsd6U8

https://www.youtube.com/watch?v=JnZXmwM7vis (Arabic)

 

Frequently Asked Questions (FAQ)


Q. I want to purchase your app for my Android phone, but I know I am going to purchase a new phone in a couple of months time. Can I transfer the app to my new phone with out paying again?

A. Use the same Google account on new phone and you will not be charged twice


Q. I'm pretty sure I paid for this app before and it's asking to pay again. Is there a reason for that??

A. Try this:
Go to the Settings menu for your device.
Navigate to Applications -> Manage Applications -> All -> Google Play Store.
Tap the Clear Cache button.
Restart the phone and try to install the app again.


Q. How to transfer my data from old phone (Android) to new phone (Android)?

A. On the old phone. Open Settings screen, open Google Drive screen, make Export rifles
On the new phone. Open Settings screen, open Google Drive screen, make Import rifles.
That's it.

There is another way if you have Dropbox account.

1. On old Android phone make Export rifles to Dropbox
2. On new Android phone Import rifles from Dropbox
That's it.


Q. How to transfer my data from Strelok+ (Android) to Strelok Pro (Android)?

A. Start Strelok+. Open Settings screen, open Google Drive screen, make Export rifles
Make copy of the file strelokplus.srl in the Google Drive root folder and rename it to rifles.srl
After this, start Strelok Pro, open Settings screen, tap Google Drive button and make Import rifles from Google drive


Q. How to transfer my data from Strelok Pro (Android) to Strelok Pro (iPad)?

A. 1. On Android. Link Strelok Pro to Dropbox and make "Export rifles to Dropbox"
2. On any device locate file Dropbox/Apps/Strelok Pro (Android)/rifles.srl. Copy it to folder Dropbox/Apps/StrelokPro
3. On iPad. Start Strelok Pro and make Import rifles from Dropbox.


Q. How to transfer my data from Strelok Pro (iPad) to Strelok Pro (Android)?

A. 1. On iPad. Link Strelok Pro to Dropbox and make "Export rifles to Dropbox"
2. On any device locate file Dropbox/Apps/StrelokPro/rifles.srl. Copy it to folder Dropbox/Apps/Strelok Pro (Android)
3. On Android. Start Strelok Pro and make Import rifles from Dropbox.


Q. I have a (Nightforce, Leupold, Bushnell, etc) scope with MilDot Recticle
Is that in your library of recticles? If yes which one would I have to choose and if no is there a chance you could include it in one of your next updates?

A. MilDot - this is standard reticle and it already listed in my program, so you can select from the list reticle with name "MilDot (USMC)" and use it.


Q. I purchased Strelok Pro and it did not install over Strelok (free). How do I transfer all my data from the Strelok to Strelok Pro?

A. Start Strelok and make "Backup rifles".
Locate folder Strelok in internal memory or external sd-card. The file rifles.srl must be in this folder.
Locate folder StrelokPro in internal memory or external sd-card.
Copy file rifles.srl to Google Drive root folder.
Start Strelok Pro, open Settings screen, tap Google Drive button and make Import rifles from Google drive


Q. What is your definition of "scope height"?

A. Distance between center line of scope and center line of bore. Like here.


Q. Could you try to explain how to use "truing" feature?

A. Suppose, you input muzzle speed as 2648 f/s
Shoot at distance bigger than zero distance. Suppose this is 800 yards. Calculated elevation for this distance is 26 MOA
Find out REAL elevation is needed to hit the target. Suppose this is 27 MOA.
On the trajectory validation screen input Distance as 800 yards and Elevation as 27 MOA
Tap button "Calculate" and speed at which elevation will be equal 27 MOA will be calculated. It this case, it will be 2609 f/s
Tap button "Use this velocity" and this calculated speed will replace your current cartridge speed (2648->2609) and screen will be closed.
On the main screen tap "Calculate" button and you will get calculated elevation which equals REAL elevation and equals 27 MOA
Now you can input any distance and hit the target.


 

 

See also: Strelok for iPhone, Strelok for Android and Strelok for Mac OS X

Home page

 

E-mail me: igor@borisov.mobi (russian, english)