Feldballistik: Hunt Ballistics

Correction in clicks for hunting: weather and GPS automatic, over 2500 loads and 220 rifles, shot log with search. No account, no ads, no tracking.

Hunting ballistic calculator: correction in clicks, weather and GPS automatic, over 900 loads, shot log, works without reception.

Feldballistik is a lean ballistic calculator for hunting, made for the quick, safe shot in the field, not for gimmicks.

On launch the app automatically fetches: • your GPS position and altitude above sea level • the current weather for your location (pressure, temperature, humidity, wind) from Open-Meteo • the shooting direction from the compass

You enter only two things: distance and slope angle. The app immediately shows you: • ELEVATION, how many clicks up or down • WINDAGE, how many clicks left or right (wind and spin drift combined) • plus time of flight, remaining velocity, impact energy and Mach

Calculation core: • G1 or G7 drag model (McCoy/JBM), selectable per profile • humid air density, latitude- and altitude-dependent gravity • slope angle by the improved Rifleman's Rule • Miller stability and Litz spin drift for the lateral offset • Coriolis and Eötvös effect on by default, can be switched off in Advanced mode The core is checked against the published Sierra and Sax tables; the remaining velocity agrees to within a few metres per second. This checks the calculation core, not the agreement with your rifle.

Profiles and catalogue: • wizard for your first profile: rifle, load, scope, zeroing; any number of profiles • searchable catalogue: over 900 loads and bullets with the manufacturers' own figures (Norma, Hornady, Sellier & Bellot, RWS, Geco, Blaser, Barnes, Sako, ATS, Lutz Möller, the complete Hasler range) and over 160 rifles with twist rate (Blaser R93/R8/K95, Merkel, Sauer, Tikka T3/T3x, Sako 85/90/100/S20, Schmidt-Rubin K31, standard twist per calibre) • every preset names its source; the values are starting points • zeroing with the terrain angle of the range, because few ranges are level • for best accuracy: fire one check shot at distance and true BC or V0 in the profile

Advanced mode (Settings): • enter wind, station pressure, temperature and humidity from your Kestrel by hand • truing: enter a check shot from 200 m, the app calculates BC or V0 • fine corrections switchable one by one, correction also in mrad and MOA, DOPE table up to 1000 m

Backup and catalogue updates (optional): • backup of your profiles to a folder of your choice, e.g. in iCloud Drive, without an account; after a reinstall the app can restore the backup • daily comparison with the online catalogue (can be switched off): new loads and rifles without an app update • report missing ammunition or rifles directly from the app

Frugal with data: no account, no ads, no tracking. All profiles and settings stay on the device. The catalogue comparison sends only the app version and a one-time signature, no profiles and no location, and can be switched off. Without reception the app keeps calculating with the last loaded or manually entered values.

Also in the app: metric or imperial units (yards, fps, inches, mph), a searchable shot log with place, hold and the weather of the moment (included in the backup), and a warning when the energy at the target falls below your minimum.

Note: the app is an aid. The responsibility for every shot lies with the shooter.