True. I had envisioned a sabot type round: outer case to handle the rifled barrel then little winglets popping out when the casing falls away. A 50 would be about the smallest calibre that I cn see being suitable. I’d think for the sake of cost, and flexibility, you’d want to still have a rifled barrel to handle regular ball ammo.
I’m stuck on guidance though. Electronics to be sure, but IR/LASER, RF slaved to the scope?
Oh a thought. What about a hollow point type design only with tunnels running to four ports at the back and a little mechanism of some sort to open and close the ports to affect the desired trajectory.
In the 80s when the big satellite dishes were the new rage, a friend was installing them. There was a big argument over solid or mesh dishes in windy areas and he said the research found the mesh dishes didn't let the wind thru after about 20 mph winds. I always remembered that and wonder how much wind would go down your hollow point. But let's get a huge grant and research it.