A delivery cart for filling particulate from a storage location to a freight container supportable on a transport truck, said cart including, a ground engaging and drivable wheel means to position the cart between the storage location and the freight container to be loaded, said wheels adapted to move the cart relative to the container during the filling process, a horizontal, extendable feeder conduit, said feeder conduit elevatable to a loading position, said feeder conduit in communication with a sensing device for detecting pressure build up of the particulate against said feeder, a means to communicate said pressure build up to the ground engaging wheels, such that the detection of pressure build up translates to the relative movement of the cart away from the freight container, whereby when the container is to be filled, the cart is positioned such that the feeder conduit is elevated and extends substantially into the top rear end of the freight container, wherein particulate delivered from the storage
