Free range opens up another can of worms IMO. If an animal is happy wandering around a natural habitat, eating good food and feeling the sun on its face, is it not a greater cruelty to take its life, than to kill an animal kept in miserable conditions with no quality of life to begin with. Farmed cattle are released from bondage, free range ripped from their homes. Free range habitat, is created at the expense of forest, marshland, woodland, fenland etc. thus having a negative impact on the bio-diversity of the ecosystem it affects. (livestock farming lead to extinction of the wolf in Britain, but the cattle were well cared for)
Eating a creature always causes suffering, free range should not ease your concience, accepting the nature of the act is the only peace.