Have been away from this site for a while so I just saw this thread. Best accuracy with my two 99s in .250 Savage has been with the Speer 87 gr. SP over 36.0 gr of RL-15 for a measured velocity of 2,892 fps. Next was the Hornady 87 gr. SP over 30.5 of AA-2015 at 2,808 fps. The 87 gr. Nosler Ballistic Tip clocked 2,812 with that same load.

Fastest 100 gr reload for me was the Nosler 100 gr. BT over 35.0 gr. of RL-15 for 2,800 fps. For comparison, the 87 gr. WW yellow box factory load yielded 3,003 fps., while the WW 100 gr. yellow box silvertip loading was a bit slower at 3,690 fps..