Science tells us that an '06 shooting a 185gr Scenar starts slower out of the gate, sheds velocity faster, and drifts more than both the 123 and 139 Scenars out of say a 'Swede.
And never mind that there is more recoil with the 185's too. So tell me again, what does the '06 bring to the table?
If you're going to compare, the 185gr is not the .308 Lapua to put in the mix.
You have to shoot a 195gr from your '06 just to beat a 105 out of a 243! I wonder what is more of a joy to shoot?
Oh, I forgot...243's are too small for deer.
Who cares about deer?
You might have a point for shooting gophers and rockchucks, banging gongs all day long, or sticking bullets through the ribs of small ungulates. But there isn't a bullet on your list that I'd pick for a shot into the shoulders of brown bear at spitting distance;or take over to Africa for any purpose....or for elk here for that matter.
What the numbers don't relate is that a well constructed bullet from a 30/06 will have more expanded frontal area,will penetrate deeper, break heavy bone more reliably,create a bigger wound channel,put more bullet weight to work,and be a generally more satisfactory all round BG cartridge than anything you can feed a 243.
Numbers are great, but they don't tell the whole story.