Gadsden Ballistic Calculatorv1.7.0
Released August 31, 2026Major
iOS
What changed
- New featureAdded off-clock wind entry using exact bearings in degrees.
- ContentNew bullet library with 131 entries from major manufacturers.
- ContentExpanded true-scale reticle support for Horus, Burris, and other manufacturers.
- PlatformAdded Bluetooth integration for Kestrel 5000-series weather meters.
- PerformanceImproved armory backup reliability during file imports.
- UXAltitude changes now dynamically update trajectory and station pressure.
- New featureAdded maximum point-blank range calculation to the range card.
- UXNew Field HUD displays click counts and prevents screen sleep.
- UXTruing can now be initiated directly from a shot-log entry.
- PerformanceImproved velocity truing logic to prevent double temperature correction.
Original release notes
NEW IN THIS RELEASE • Off-clock wind: enter the wind as an exact bearing in degrees, not just the twelve clock positions. A dope card remembers the bearing it was solved with. • Bullet library for handloaders: 131 bullets you can drop straight into a load, with ballistic coefficients and dimensions taken from the maker's own published data — Berger, Hornady, Nosler, Lapua and Barnes. Every bullet cites its source; we only add one when the maker publishes the numbers. • More true-scale reticles: the holdover drawing now covers additional manufacturer-published reticles (Horus TREMOR3, Burris SCR 2 Mil and more), each read from the maker's own subtension sheet. • Sturdier armory backup: importing a backup file can no longer be tripped up by an out-of-range value in a single record. Reticle holdover drawn from real subtension data: Mil-Dot, Nightforce MIL-XT, MOAR-T, FC-MIL and FC-MOA, Vortex EBR-7C and EBR-2C, Leupold TMR, Kahles SKMR4, Zeiss ZF-MRi, March FMC-1, and the reticles added above. Every other reticle keeps the true-scale holdover grid, labelled so you always know which you are seeing. Kestrel 5000-series weather meters (beta, Pro): pull temperature, pressure and humidity straight off your meter over Bluetooth instead of typing them in. ALSO IMPROVED • The altitude field now changes the trajectory. Station pressure is derived from altitude unless you enter pressure or pull it from a meter. • Applying a trued velocity is now anchored to the temperature you trued at, instead of being temperature-corrected twice. • Maximum point-blank range on the range card: the farthest distance you can hold dead-on for a chosen vital zone, and the zero that gets you there. • True from a logged shot — tap any shot-log entry to open truing with that range and miss already filled in. • The Field HUD shows click counts and time of flight and keeps the screen awake while you are behind the rifle. • Clear a truing you no longer trust — a mis-measured drop no longer overrides your published velocity forever. • A Kestrel reading older than five minutes is refused at the moment you apply it, and the "conditions from Kestrel / live weather" badge clears the moment you edit a value by hand. • Deleting a rifle no longer leaves scopes and mounts saying they are attached to it.