Honestly, I don't think it's the right size for baby corns. I have one too that I bought just before my eggs hatched, just in case, and realized as soon as it arrived that it's very big to be sticking in a baby snakes mouth. Even any tube you fit on the end of it would be practically pinky sized itself..
There's lots of instruction here on getting your babies to eat, as well as force feeding if it should come to that.. But having held a baby corn in one hand and that big old syringe in the other, I don't think it simplifies the process at all.. :shrugs: