the 17 rimfire is goot out to 200 yards on a coyote, i use it all the time, i have droped 60 coyotes in the past 4 months with it, i havnt shot a center fire yet but plan on buying one some day. they are fun little guns once you learn how to shoot them well, if you go out and shoot a couple hundred every couple of days you get to know the gun awesome and when you go to shoot you know whats goin on out past ur barrel. u have to be good at judging windage and range past 200 yard. i have seen a rimfire hit a coyote at 300 yards, that the person shouldnt have tried a shot that far. it is all about shot placement