I agree that the managed recoil 30-06 does not compare to the 243 full loads as Zrex says.
That being said, Gkellys mentioned that 100 yards is as long a shot as he gets in the woods there. The 30-06 managed recoil loads will certainly perform to that range. The added benefit here is that he does not have to rebarrel the gun or buy another one.

I have shot the managed recoil from both a 270 and 30-06 in an effort to find a reasonable recoil for my 13 year old. The 270 was great, probably around that ofthe 243 and the 30-06 was less than my 30-30.