User blog comment:Sentry 616/Weapon Gushing/@comment-35455126-20200126051742/@comment-27144409-20200126151953

Well first, the gyro part didn't work. What was supposed to happen was that the propellant nozzles would be angled to provide a gyroscopic spin sing I guess fins weren't feasible, and rifling was also out. Sadly for those who used it, the angles didn't quite work out, so they tended to be fairly inaccurate. Will update as I check references.