ORIGINAL: Mykey
Which ever one is the most accurate out of your rifle is definately the one i'd opt for because shot placement along with a well constructed bullet is a lethal combination. As long as you do your part and put one in the engine room rest assured any of the bullets you've mentioned will do the job and do it well imo. Good luck.
Although the BAR 30-06 is a new gun and caliber for me, I've been practicing a lot with it this summer and am confident I can do my part as far as shot placement is concerned.
Here's a couple of 100 Yd 3 shot groups shot with the BAR.
...........Squares are 1/2".......................................Shoot-n-See target is 5 1/2"
Although this BT target is the smallest group, the BT's averaged a little over an inch. The Sierra GK's had the smallest overall average.
If the 180 Sierra ProHunters and the 165 Nosler Partitions shoot as well as these two, then I probally will have to get out a coin to flip.
firstshot