This is the support thread for Ballistics app. Please add feature requests, questions, comments here and I'll do my best to answer them :)
Download the app here
Ballistics is a ballistic calculator. It's a perfect companion for hunters and long range shooters who occasionally need to accurately hit a target at a different range to what the rifle has been zeroed to. Distance to target can be set directly on the main screen with up and down buttons and the results can be read on the same screen when the calculation completes.
After installing the application you need to go over the settings in Garmin Connect mobile app and change the defaults to match your set up. Sight settings allow setting up all rifle related parameters: sight height from bore centerline, the range you've zeroed your rifle to and how many Minutes of Angle (MOA) each click on your scope is. Cartridge and bullet related settings also need to be configured before use. Drag function and drag coefficient depend mainly on the shape of the bullet you're using, this data can probably be found in the bullet manufacturer's data sheet (example from Lapua can be found here). The initial velocity is the speed the bullet leaves the barrel and can be found in the cartridge data sheet if you use factory-made cartridges (example from Lapua can be found here).
On first run and after changing rifle or cartridge related settings the app will pre-calculate some values which will take a while, even couple of minutes (a text "Initializing rifle" is displayed). The ballistics calculations itself can take some time (the more further the target, the more time it takes to calculate the result), but not as long as the initialization.
Quick start up guide
- on main screen "up" and "menu" buttons open main menu where all parameters are set. The "start/stop" button begins the calculations and eventually opens the result screen. On result screen only "back" button is active
- to set the cartridge properties open Garmin Connect on your mobile phone, go to Ballistics app info page (Garmin Devices / Device / Connect IQ Apps / Ballistics) and select Settings. Values are inputted in statute units, but displayed in the app in the unit of your preference.
Disclaimer: the application uses generic ballistics formulae which should be accurate enough for hunting use. For shots longer than 250m (or 270yds) the calculations should be verified at shooting range to make sure the calculated values match your specific cartridge and gun combination.
Known issues in latest version
- No known issues
Version info
1.39, 2015-11-14
- Added support for Fenix 3, D2 Bravo and Vivoactive (not tested with real devices though)
- Numeric inputs are now native
- Cartridge and sight settings are now managed in Garmin Connect (statute values)
- Settings can be viewed in the app (Menu -> Other). The setting list is scrollable.
- Results are adjusted by temperature, altitude and pressure values read from the sensors (can be turned off in the app settings)
- Added support for 0.1mil and 0.2mil scopes
- Smaller memory footprint
1.1, 2015-07-06
- Values can be now set a bit faster by long-pressing up (menu on Epix) or down (clock on Epix) buttons. This changes the values 10x.
1.0, 2015-06-29
- new look & feel
- optimized performance
- now indicates when calculating with a progress bar
- re-added windage/drift calculation
0.92R beta, 2015-04-26
- Reduced feature set version to fix memory issues (app not starting). No windage support.
- Missing features will be added once memory issues are fixed
0.91 beta, 2015-03-29
- Removed unused menu item
0.9 beta, 2015-03-29
- Initial upload. Not tested with real hardware.
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