Everything I'm seeing is saying .220 Swift or 22/250. In so much than apart from "class", I'm not sure your actually achieving anything.

And I'm not sure about this "small pig or goat" thing. In so much as all the .22 cal centerfires are wonderful for "small pigs and goats". Trouble is I have never met a hunter, who can control himself when that 100kg boar or 40 inch goat walks in front of him. And if your in an area that turns up "small pigs and goats", your also in an area that may turn up big pigs and goats.

If you have some sort of .22 cal hotshot centerfire, and you see a big old boar or a big goat, your going to have a crack at it. Particularly if you have a rifle that you are confident in, and know where its shooting.

So then, why not have a 6mm plus or a .30 cal? And do the job properly.