Which is better for a long range varmint gun the .223 or the 22-250? I want to use it on prairie dogs and 'yotes. I saw some pictures of the new Tikka varmints...SWEET! Looks like they'll be available in .223, .22-250, and .308. Pretty sure I don't want the .308, so that narrows it down to the other two.

Thanks for the input.