I believe the .223 wssm is an excellent coyote round. BUT....I have owned both Browning and Winchester WSSMs. The Brownings were definitely the better gun. I had feeding issues with all the Winchesters regardless of model. The Brownings all shot exceptionally well and I don't recall having any feeding issues with them. I shed them all ultimately, mainly out fear of not being able to find/afford ammo or components. Went back to more "mainstream" calibers.
That being said, I would love a .243wssm or .25wssm upper for my AR. Funny world.