What about using this cannon to haul large Mechanical Loads into Space.
I mean they could be delivered into space at a fraction cost of Space Shuttle.
I concur!!
Absolutely, like sending a tank of gas or water, sturdy objects. It can place such objects in orbit. Than some rocket/space-shuttle kind of thing can place the object at required coordinates. May be haul it up to a space station. Thus reducing the cost of placing in orbit greatly!!