Application of the engravement method to the study of particle velocity distribution in the wall of a thick‐walled metal cylinder internally loaded with an explosive charge is described. Tests were conducted with this method on modified cylinders of annealed low‐carbon steel and of brass. Even though each of the modified cylinders broke into a number of fragments, the engravements were well enough preserved to furnish considerable data. Many measurements were obtained from each cylinder by using a large number of pellets of several thicknesses. Particle velocity data were obtained to within716inch from the metalexplosive interface. Temporal particle velocity distribution curves are presented for each of the cylinders.