Re: New rifle choice 22/250 .243 .204
The 220 is a good round but its just as hard on fur as 22-250 if not a little worse. Good luck finding a box of 220 swift ammo locally as well, the only place I've ever seen it was gander mountain once which it was way overpriced and then at cabelas.
With 223, 22-250, or 243 you can find a good selection of loads in any store in the country that sells ammo. Even walmart and dicks stocks it. I buy rifles based on ammo availability even though I reload most of mine so 220 swift wouldn't even be an option for me.
One other thing to keep in mind is barrel life. 220 swift is bad, 22-250 is pretty bad, and 243 is just as bad.