I would argue that you have confused morality with ethics. Morality would be whether it is right or wrong to kill deer. Ethics would be your personal choices on how to do so. While I am still staunchly in the "it is morally correct to kill deer" camp, my travels have convinced me to be a bit more ethically flexible. The first native Americans stampeded entire buffalo herds over cliffs, and usually only utilized the dead on top (archeological evidence often shows the ones on the bottom to be untouched). Was that moral? Yes. Was that ethical? More difficult.
Currently, I know of several groups that use full auto machine guns from helicopters for hog hunting. Some may find that less than ethical - I would love to try that. After I try it, if I find it not to my taste then I would refrain from doing so.
i have no interest in extreme long range shooting, but if others wish to do so, then that is their call as long as it is legal. I personally see no interest in creating warmongering factions within the hunting/stalking community.