Out last night with the .22, took four rabbits out of one warren here in my home area of Warwickshire.
All of them had white spots on the livers ranging from just a few, to loads of small spots, to one big white area 10mm dia plus smaller ones. Rabbits were varied ages from 3/4 grown adolescent to big bruiser buck, externally, all looked perfectly healthy, not many fleas.
Some people say it is early stage of myxi, but none of the rabbits from that warren have shown any other signs of myxi - eyes perfectly clear, no lumps, bumps, sores etc.
Have had the odd one with the white spots