No there aren't. I have no doubt the people you describe exist, but "vegan hunter" is a complete oxymoron unless you're talking about "hunting" berries. Even descriptivist dictionaries don't include any definition of vegan which allows for eating meat.

Ive heard the term for a lack of a better word and find it fair enough. But the point im making is that there are people that refuse to participate in the bio-industry due to ethical considerations, yet hunt for their own food and do so scarcely.