Oh funny, I've actually heard someone mention that this would be a fun feature for aquilo.
It would be quite useful for like really long transportation over land and it could have the upside of not being attacked by biters, so it would be useful at transfering items through biter infested territory. Though I think (haven't really played enough with it) that the fulgora cannons do that pretty well...
Also how am I meant to like find where the item railgun shoots stuff? Cause I can't find a way to get those paths from far away