Peaceful. Precise. Armed.
A client-side suite for small-arms external ballistics. Everything runs in your browser — no data leaves the device. It works offline once loaded, and installs as an app on desktop and mobile.
Open the app →Bullets don't fly straight. Here's exactly how far off — drop, windage, velocity, time of flight, at any distance.
Hit probability against a target, accounting for wind, range-estimation and dispersion uncertainty.
Refined "high speed low drag" ballistic solver for range use. No unnecessary information.
Calculate BC from known data, convert between different models, etc.
Build a bullet's own drag curve from a velocity table.
Measure rifle precision using images of targets with impacts.
We do not collect any data. Nothing is ever transmitted to the server.
This program comes with ABSOLUTELY NO WARRANTY. It is free software, licensed under the GNU Affero General Public License v3.0 or later, and you are welcome to redistribute it under its terms.