Popknot,
I use an AR for most of my predator hunting. I have two - one is a Bushmaster 223 with 16" barrel. It's a collapsable stock model, M4A3. It is plenty accurate enough for basic predator hunting. I have taken three bobcats with it, but no coyotes.
My most recent coyote-getter is a Dtech 6x45, which is a 223 necked up to 6mm. It has a 20" barrel. I love it. It packs a punch with 75 gr. Sierra HPs. I shot two coyotes back in January with it, and it worked great. I have also taken three bobcats with it. All bullets exited, but left only about quarter-size holes in the offside. Only one bobcat was ruined.
Where I live and hunt - in the mountains of Virginia, an AR is all I need for predators. Rarely are shots over 100 yards, though I could get longer shots in many places where I hunt. So far, all shots have been under 100 yards at predators here, and that includes 8 bobcats and two coyotes. So, for closer distances, they are fine rifles.
The scope on my Dtech is a Mueller 3x10.44 illuminated dot reticle with the German post crosshair. One coyote I shot was in a dead run at about 80 yards. I honestly believe that the dot reticle helped me get that dog. The dot is easy to use and quick on target.
ARs, in my opinion, are great calling rifles and I love hunting with them. Hope this helps.
I will post some pictures once I find out how to do that - I'm new to this forum.
Good Shooting.
6mm06