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An optimized C library for numerically solving exterior ballistics problems. It supports standard drag models (Drag Functions G1-G8). The solution method is the common "3 degree of freedom" analysis found in many commercial programs.
Arrowmatcher is a ballistics software for crossbow archers. It can calculate the speed, kinetic energy, trajectory, aiming solution and much more of an arrow (or bullet). It uses a simplified 6 degree of freedom model.
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This is an Open Source adaptation of the "Smart Rifle" or "Software Defined Scope System" (SDSS).
Open source operating systems helped advance PC technology, making it available for everybody. Ballistica aims to be the "Linux of Smart Rifles": free and open source. The only challenge is the hardware, which must be fabricated by the user, or by any intrepid makers out there.
pyBallistics is a graphical small arms ballistics program used to calculate ballistic coefficients, and model bullet trajectories. Future improvements will be a reloading database, and web links to industry reloading data.
Web Version is now live at www.RRonline.org
Come visit our new Online lookups.
This project is designed to compile the data and calculations needed for metallic cartridge and shot shell reloading. All data comes from documented sources.
Soon to be available in web form for tablets and smartphones.
A graphical interface for solving exterior ballistics problems, based on the excellent GNU exterior ballistics library. This software generates valid 3-DOF solutions to small arms trajectories, including wind and atmospheric corrections.
Space Ballistics is arcade game like Amiga's Gravity Wars. You need set angle and torpedo power to hit enemy, but gravitation from some planet make trajectory not easy.
AppSignal's MCP server hands Claude, Cursor, or Zed your real errors, traces, and the deploy that shipped them. AI writes the fix; you review the diff.
chamber is a reactive hydrodynamic modeling tool specifically designed for small arms interior ballistics research. Multiple equations of state and burn models are supported. chamber is an adaptation of the BKW, SIN, 2DL and 2DE codes in one package.