The 168 matchking will fly fine with whatever twist. However, it is not a hunting bullet. The only design consideration was making it reach a piece of paper. Guy on AR15.com posted a photo a couple days back of what was left of the shoulder of a deer he shot with the Hornady flavor of the same bullet. Nothing really left to eat.
http://www.ar15.com/forums/t_10_23/6...8_bullet_.html
The 165 gr Gameking is a good bullet.