87 gr vmax or 95 gr Berger will have all the knockdown a coyote can stand and then some.
Was raised in MO and spent more than a few years hunting coyotes in the wind too ($50 pair of ears, that is how I got this handle). shot out a 6mm Rem barrel and never had a coyote walk away with the bullets we had then. Now they do not stand a chance.
Richard Franklin has built what I think is the ultimate big and LR varmint killing machine in his 300 WSM
. 19 MOA to 1k is super flat and the 125 BTip at 4000 will absolutely melt any coyote. No need to skin them, they are already flipped inside out.