
thumb|Simplified diagram of a multistage coilgun with three coils, a barrel, and a ferromagnetic [[projectile]]
thumb|Simplified diagram of a multistage coilgun with three coils, a barrel, and a ferromagnetic [[projectile]]
A coilgun is a type of mass driver consisting of one or more coils used as electromagnets in the configuration of a linear motor that accelerate a ferromagnetic or conducting projectile to high velocity. In almost all coilgun configurations, the coils and the gun barrel are arranged on a common axis. A coilgun is not a rifle as the barrel is smoothbore (not rifled).
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).