I've killed coyotes with both, but much prefer the bolt guns. I was getting sets with multiples coming to the call a few years ago so I got a Rock River Coyote rifle to help speed up the shooting. I'll be 70 in a couple weeks and after a few years playing with it the AR still feels awkward and heavy compared to my sporter bolt guns. For some reason I've never had a pair of coyotes show up when using the AR.
