This sounds a lot like a conversation I once had with a neighbor who was a physics professor.
He said his department was once approached to figure out the trajectory for a long range ships cannon.
After much figuring and computer simulations, the only thing that actually came close enough for government work, was just firing the danged thing and see where it landed.
Walt Kelly, alias Pogo, sez:
“Don't take life so serious, son, it ain't nohow permanent.”