Art,

In my opinion the .22/250 and similar rifles make the best roo shooting choices there are.

In the older days, the .22/250 and the .243 with lightish bullets, as a 70 gr or 75 gr HP, were the most popular choices for professional roo shooters.

Head shots can be taken with almost anything, as long as the brain is hit. I remember shooting a roo once with my brand new .222 Remington 788, and at quite close range, missed the brain and blew the jaw off the poor creature. I quickly shot it again to kill it. I would hate for such an animal to escape like that.

Brain shots on roos are always preferred for professionals shooting for skins and meat. Some jurisdictions and gov't approval courses claim ONLY brain shots should be taken - "to minimise suffering" of the beast. Some stupid shooters echo this BS. If only brain shots can be taken to "minimise suffering" one day the animal welfare and rights types people will insist all hunting should only be brain shots.

A shot to the chest with a good .22 centrefire and certainly a .243 75 gr HP will kill it. The larger the calibre and heavier the bullet, the more chance of a large exist wound damaging the skin.

I would imagine the .223 is now a very popular roo shooting choice. One hardly hears of a .22/250 anymore being used. Maybe someone needs to invent a .22 Creedmore for the press to rave about endlessly - ha ha only joking.

If shooting to cull roos under permit, and no use is intended, then anything can be used. As damage is not an issue.

I remember once shooting a roo with a .30-06 with a .224 55 gr Accelerator projectile. Travelling at 4000 fps it flattened the roo pretty quickly.