This invention is a new-type, full-scale, tank-target silhouette for use in tank gunnery practice with the main gun of a tank. The new target employs lightweight sheet material that is corrugated in the manner of an accordion-door (or pleated) configuration to produce a self-supporting, rigid target silhouette which can be raised and lowered, and which can sustain multiple hits without collapsing. The corrugation configuration, when clamped along the bottom edge of the ridges and grooves, provides the necessary rigidity for the target to stand upright without other vertical structural members which could be hit and destroyed.