I would try the 165 or 168 TSX or TTSX also. They work well in everything from 308 to 300 WM and are also a good single deer elk load. I like some weight to a 300 magnum and 7.5-8lbs is at the low end for me. May not be a factor for you but I would not hesitate to put a heavier scope on the Kimber to bring the weight up some.

"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli