I use a Sig 522 with 3rd Gen night vision, a Rock River lower/Storm Lake Machine upper in 6.8 SPC, a Rem 700 VSSFII in 220 swift and a Colt Match Grade Lower/American Spirit Arms upper Bull barrel 24" in 223 Rem. Besides the night vision scope.....all Leupold optics. All of this hardware and I took my biggest yote with a muzzleloader (Thompson Center Encore) while deer hunting on opening day in Michigan in 2006 (approx 40 lbs-its a coydog, full mount in my trophy room). Biggest one I ever seen, helped my harvest my first Pope and Young buck in Pike County, IL. Huge yotes found in Ohio, Michigan, Indiana and Illinois. If I were to REALLY hunt big yotes.....I'd hunt central....North central Indiana.