I like 55 grain Sierra HPBT's in my 223 for fur . The way I have them loaded they run around 2900 fps mv . From 25 yards out 300 yards when I do my part and have the shot placement I should they don't exit on coyote . Fox and bob cats usually only have some small pieces of copper come out the off side and a couple of stiches will keep the holes from expanding when I put them up . I once did an experiment with a nice blue backed wide white bellied bob cat and left a hole the size of a soft ball in the side . The fur buyer offered me $ 25.00 for it . I took it home and soaked it in warm water in the bath tub till it was soft again turned it hide out and carefully sewed the hole closed stretched it again and took it back to the same buyer the next week he then paid me $125.00 for the same cat . That was in the 80's after the fur market crashed .