Why not just miniaturize a CIWS and put it on top of an MBT for it to act as anti-drone point defense?

picrel is 5.56, but i think it can be done in 9mm.

yes, an APS system can in theory do it too, but 9mm or 556 bullets are cheaper than an explosive round.

pros:

>cheap ammo and barrel
>close range
>low collateral damage, you won't blow the allied infantry nearby up
>may act as a stopgap measure until we figure out lasers

cons:

>limited to about 50m~ range
>im not sure how pricey the targeting system would be, or if it's even possible to miniaturize it as of today
>maybe be too niche, currently, jammers seem to be getting so effective that FPV drones may disappear entirely in the next 10 years