Consider C-RAM (Army Phalanx) stands for Counter Rocket, Artillery, Mortar: I would assume it works perfectly fine against most artillery. But also, I suppose it would depend on the size of the artillery and type of the round. I wouldn’t expect a spray of 20-30mm rounds to do much at all to the trajectory of a 406mm Mk. 8 APC shell, for instance… but none of those are in service anymore.
Consider C-RAM (Army Phalanx) stands for Counter Rocket, Artillery, Mortar: I would assume it works perfectly fine against most artillery. But also, I suppose it would depend on the size of the artillery and type of the round. I wouldn’t expect a spray of 20-30mm rounds to do much at all to the trajectory of a 406mm Mk. 8 APC shell, for instance… but none of those are in service anymore.