Well if youre having a barrel chambered for this & still bandying around different cartridges with 25-06 in the mix, then why not seriously take the 257 Roberts into the equation.??
Also, while the 243 will always win in any "which is more versatile out of 243 & 22-250", there is still a lot of good about the 22-250 being left out here.
You started out considering the 223AI, so why not the 22-250 AI...?
The 22-250 is more than capable of taking small to medium animals like goats & dogs etc., which are both pretty thin skinned animals. Admittedly pigs are a different matter, but those who know what they are doing still hunt small to medium pigs with a 223.
If you can shoot, you'll have no problems in taking goats for the table easily out at 300 with the 22-250, & dogs will tip over probably just, as if not easier.
And you talk about inbetween your 222 & 270...so what happened to your 6.5x55 you always said is your go-to hunt gun...? If you still have that a 22-250 AI would be a better gap filler in my opinion, unless you just want a short action 6mm cartridge
The 22-250 is just a smidge under the 243 in every respect, volume (noise), case capacity & bullet flinging weight, variety of bullet availability & cheap prices, & for what they are, they hit with some magnificent authority...so choose an appropriate twist & bullets for its purposes & you wont be disappointed.
But its most likely you wont be disappointed with your 243 either by the sounds of it.
