Pretex, well then you need to get a 300 WSM
On the more serious side, the 165/168 bullets would be better out of a 30-06 up to about 600 yds. I personally would go with the AB's first because IMO they are a better hunting bullet. I would only use BT's for varmit and target shooting.
You might try some RL 17 if you can get it. I've heard some good results with it in the .06