All the ones I come across are perfectly fine. If you could hunt Philip Island you'd be up to your neck in them (rabbits) I think they've bred out all the calici and Myxo issues with their own immunity quite frankly. Rarely have I ever come across a diseased one. Usually eyes and nose, liver etc check out fine. Plus I don't believe myxo is an issue for human beings anyway - Granted the 308 does mince them up a bit
I have never seen the aftermath of a 308 vs a rabbit but I have seen what they do to large game like pigs and skippy.
there would be nothing left. but being small I guess the bullet would not of started to mushroom in shape