I have used them in my .223 some and have loaded a good many for 3 different 22-250's. They shoot very well and are really effective on coyotes,deer,hogs around here but with that being said I got mostly pass-thrus on coyotes and Bobcats with them in the .223 with nickel to quarter sized exits. They are Gameking bullets so I am thinking they will have a heavy enough jacket to almost always exit a Bobcat and most coyotes but with only moderate sized holes.