i have been hunting about 42 or 3 yrs. and killed close to 2000 coyotes,before the 17.rem came out i shot them all with 52.gr.HPBT match bullets sierra and hornady.and if you didn't hit them just right you got to sew more than you wanted.the 17. rem and 25 and 30gr. berger bullets changed that, very very few needed sewing and the did more internal damage.coyotes that would run 100yds when shot in the lungs with the 52.gr. bullets dropped in their tracks so i would think the 204.would do close to the same thing. i shoot 40gr bergers in my 223 and 52.gr. in my 22-250.