The Crucible in Oakland, California hosts a spectacular event each summer called the Fire Arts Festival. The Flamethrower Shooting Gallery is one of the installations. The Flamethrower Shooting Gallery operates by a high pressure line fed by nitrogen that blasts 87 octane gasoline or methanol in a straight line for about 30 feet. Targets are set up for attendees to shoot at. This video documents the set up in West Oakland.
Flamethrower Shooting Gallery Set Up 7-12-2009