We report on high speed photography studies of bubble propagation by pulsed gradient fields. We have examined garnet films of different compositions, as‐grown and ion‐implanted, with different thicknesses and degrees of crystallographic alignment. In all cases we find that for moderate gradient drives, the bubble moves at an average velocity which is roughly independent of the drive strength and exhibits a ballistic overshoot after the end of the pulse. A theory for the effects is based on the notion that Bloch lines nucleate and store the kinetic energy needed for the overshoot. Calculations of the velocity‐momentum relation for a moving bubble indicate that the average velocity should be higher in the plane wall or radial case and close to the Bloch line instability velocity Vpo for a plane wall.