.223, 22-250, .243, 6mm, they'll ALL get the job done. My personal preference is a .243 for 'yotes
BUT...FOM mentioned neighbors and all of those are real loud, loud enuf to be an annoyance to some neighbors. Iffen that's the case, you can't beat the lowly .22 Hornet with a 40-45 gr. Hornady SX bullet you can knock 'em down out to a bit over 200 yds with no range compensation. The quiet-er alternative.