They can carry just about anything as the Army used them for just about everything they needed (and they need a lot of things from ammunition, paper, uniforms, dry goods, general goods, fertilizer for ANFO...). The army used these particular ones to deliver all sorts of supplies to and from an army ammunition plant and to distribute supplies to the different assembly lines around the post. The various assembly lines can be miles apart. They also used them to carry ammunition to the thousands of acres of ammunition storage igloos around the post. I have an ammunition igloo spline on the DLS that would come in handy with these boxcars. What I need to find is an Army loco or switcher to use with them.