Whatever you decide.....I'd do it, by finding a buddy, or going to a range , where you can shoot both , or all three, a .223 , a .204 and a .17. Make a decision based on reality. Sure Ruger touts the .204 along with Hornady...they MADE the caliber, in 2004. But I bought one, with trial and experience. I bought a CZ 204 m varmint, bull barrel. And trust me, it exits......not many folks here shoot coyotes for pelts....they trap for that . Have a guy that is in my DU chapter, that trapped over 200 in SE Mo last year. They are nocturnal for the most part....so shooting them for pelts here..is tough....not like out west, wide open spaces. Bullet drop is less in the 204, and so is wind drift. The 223 gives you a better bullet weight selection, and is less expensive to shoot. I have shot and own a 17 HMR and it is a great round...but can't hold up to the distance needed for yotes on out there at 250 to 300 yards. So...for MY needs......which may be completely different from others.....the 204 IS the best choice....the 17 and 223 are both great for folks that like to shoot them , I do as welll.....just love the 204 , and it's the rifle I grab ...... Do your homework...and you choose for YOU.