Abstract: A wheeled carriage for supporting a target. The carriage can be drawn along the ground or alternatively, is self-powered. If self-powered, the carriage optionally includes radio frequency remote controls. Two wheels are preferably mounted on an axle which pivotally engages the carriage, thereby enabling facile turning. The carriage has two upwardly projecting posts for engaging the target. One post is fixed to the carriage and the other is pivotally and horizontally slidably mounted thereto for adjustment in engaging corresponding structure of the target.