Any of them will work fine
Gosh, and here I though this was one of the places to do that homework.LOL...do your own homework. Stop asking others to do it for you.
this...Build a lower then buy a rra predator pursuit upper..if money isn't an issue just buy any rock u want already complete..any ar will be adequate but a rock is guaranteed 3/4 moa
So are rats. Do you just take pictures of rats as well or do you attempt to exterminate them like the vermin that they are. Coyotes are equally vermin.maby a camera would be better suited.
coyotes are living things too you know.....made of flesh and blood.
so , get the camera out to shoot the coyotes.