HM17 as well, there's a reason you can't legally use it to hunt, in some states. (If you miss, it just keeps going for miles. Even if you don't miss, it can still just keep going for a mile.)
Are you talking about .17 HMR? That round does have a very flat trajectory, but it’s illegal to hunt deer in some states because it isn’t lethal and won’t penetrate vital organs (just like .22 rimfire.) .17 HMR is primarily used for shooting small game where precision and minimal damage are preferred.