I’ve been using a .243 TIkka bolt action and Savage A 17 for coyotes, my son has the .223 in the AR platform. The fact they are always moving and we have seen them in pairs except on two occasions. Last week in Maine and one day Turkey hunting when a young yote thought our decoy was breakfast. We dusted him simulatenoulsly at 17 yards full of shot. Dropped in its tracks.
I may look for a Browning .243 BAR to use primarily for the follow up shot quickly.