Sniper baker
Don't pick your ammo for how it works on meat, pick it for how it works on metal. Times, they are a changing.
Look into the heavier versions of TSS 'tungsten super shot'. The stuff made for bigger than birds, like hogs and deer. Called 'predator loads'. #2 shot penetrates like buckshot and there's 10x as many, harder than steel and way denser than lead. Might do ya some good in a robot dense problem.
https://apexmunition.com/product-category/predator-deer-tss/
That'll do nicely.
>https://downdetector.com/status/youtube/
Amazon is up for me… SE US