No, the Navy didn't invest in it because it didn't work. And there's an enormous difference between satellites (often weighing tons) and guided projectiles (weighing only a few pounds). The physics just do not work.
You do not need to shoot complex communications satellites into orbit with a gun to save very large amounts of money and gain very significant capabilities by sending things to orbit with gun launched projectiles.
Just the ability to send water, fuel, building materials and food into orbit at a tiny fraction of the cost per pound of rocket delivered materials would be a game changing advantage.