McMillan shared photographs from his teens where he and his mates, complete with bows on their backs and quivers of arrows slung over their shoulders, posed with goats and even possums they had hunted.
Other photos show him posing with trophies and cabinets full of awards, showing he said he has had luck in competitions too. He also won a silver medal at the 2011 Masters Games.
"I was the very first Wellington region archer to win the New Zealand Bow Hunter championships. I won it twice, and got a few second and third places along the way. I won the Wellington trophy eight times and the Taranaki one 19 times.
"Unless they cheat, no one's ever going to beat that."