A huge number of stone cores were found. From huge, to bullet-sized.
As an artillery shell, the cannonball is not the best option. Low penetration, a conical projectile is much higher.
Unless the attackers had a goal to decorate the enemy wall.
Many kernels are amazing in the quality of their processing.
They say that the iron-smelting business was poorly developed, and there was a lot of stone, so they made it out of it. Would you like to try? Take a copper or brass chisel there (but even steel in fact), a piece of stone and hollow out the core !? Yes, with the same quality as above in the photo? Yes, from a strong stone, so that it does not fly into dust when it hits the wall?
Promotional video:
But there are thousands of terrible nuclei! And it's consumable!
Either making them did not present any particular difficulties for the warriors of that time, or all this was not used as shells for throwing weapons.
Maybe these are kidney stones of the giants of those years?:):):) Or their bowling balls?
Or these kernels were cast and again we return to the question of the possibility of softening the stone by our ancestors. And not at all distant. Later, when the cores began to be made metal, they justified the fact that at the time of stone cores, they did not know how to cast and generally extract metal … ?????? Come on? Could they make a tool capable of working the stone like that?
On the subject: "From stone to iron cores. What's the point?" and "Possible advantages of stone cores over iron cores".