Tyndall Field in Florida is credited with creating the first “jeep range”, a place where jeeps carried objects for gunnery practice. Here are a few pics and articles about “jeep ranges”.
This photo appeared in the Atlanta Constitution Sun newspaper on June 06, 1943:
A year earlier, a model plane was attached to a jeep in the first iteration of a jeep range:
Here are some larger photos of the ones shown above from the July 12, 1942, issue of the Fort Worth Star Telegram: