Forensic topography, in your browser
See a bullet’s fingerprint.
Every fired bullet carries a microscopic signature — striations left by the rifling inside the gun barrel. Drop an .x3p scan below to explore one interactively, drop several from a single bullet to stitch them around a virtual barrel, or run the model comparison workflow.
Twelve lands from the NIST NBTRD Hamby 252 study — Barrel 1, Bullets 1 & 2 (6 lands each). Two are pre-selected as a likely match; swap any A/B pair from the scans panel to explore the rest.
Single land
Inspect one 3D surface scan. Orbit, zoom, and pick a crosscut line.
Full bullet
Stitch multiple scans into a cylinder to see the whole bullet in context.
Signature
Extract the 1D height profile that forensic algorithms compare.
Model compare
Submit loaded evidence to the model service and inspect the score and artifacts.
Drop .x3p files here
A single land for inspection, or several to stitch into a full bullet. Files stay in your browser unless you run Model compare or Land(s) detection.