So far the only one that got the question was fuzzy bear.
The question was, is there any range that someone could shoot that YOU FEEL IS UN-ETHICAL? Or is the any range you practice at a good answer?
Chester Golf summed up my feeling's pretty well when he said, "you can't wound paper target's". My feeling is paper target's don't bleed. I guess he get's it too but he doesn't really say at what point he'd concider someone else not being ethical.
I think that at some point, if we as a group don't decide what's ethical and what's not, the law will step in and decide it for us. We just may not like that.
CZ is out with a new rifle their claiming is a 500 yd rifle BUT they don't recommend shooting at that range. That they probally mean, but tossing the idea that "we got a rifle made for it" will likely increase sale's.