Handloader Bench

A local, offline handload-tracking database and a JBM-Ballistics-style trajectory calculator, combined into one app. Runs on Windows (a single .exe, no installer) or from source on Linux/Mac.

Handloader_Bench/
├── launcher.py     # combined entry point
├── handloads/      # handload records tracker -- see handloads/README.md
└── ballistics/     # ballistics calculator -- see ballistics/README.md

Download (Windows)

Grab the latest HandloaderBench.exe from this repo's Releases page. It's a single portable file -- no installer, nothing else to download.

Windows will show a "Windows protected your PC" / unknown publisher warning the first time you run it (SmartScreen -> More info -> Run anyway). That's expected: the build is signed to prove it hasn't been tampered with since it was built, but not with a certificate from a paid certificate authority, which is what Windows requires to skip that warning entirely.

Your data (handload records) is saved to %APPDATA%\HandloaderBench\ and persists between launches and updates.

Running from source (Linux/Mac)

Each tool runs standalone:

cd handloads && python3 app.py
cd ballistics && python3 app.py       # needs ballistics/vendor -- see its README

Or open both from one launcher window:

python3 launcher.py

Building it yourself

See BUILDING.md for how the combined launcher and the Windows build/signing pipeline work.

License

MIT (LICENSE) for this repository's code. The built executable also bundles a few third-party libraries under their own licenses -- see NOTICE.md.