ac = bearing + 0.25*dispersion # dispersion is a random variable
bullseye = (15.0 - bearing)*0.5235988
track = course(bearing=ac, distance=QUADSIZE, origin=cartesian(origin))
ac = bearing + 0.25*dispersion # dispersion is a random variable
bullseye = (15.0 - bearing)*0.5235988
track = course(bearing=ac, distance=QUADSIZE, origin=cartesian(origin))