IMR 4831
I works well from 150Grain up. See the link for a page from the Barnes reloading manual. If you are using Triple Shocks the powder load must be reduced by 1 to 2 grains. http://www.barnesbullets.com/images/c358.jpg
The 180 Grain XLC Bullet uses 61 Grains IMR 4831 max @ 2956
The 165 Grain XLC bullet uses 62 Grains IMR4831 max @ 3091 FPS.
The 150 Grain XLC bullet uses 62.5 Grain IMR 4831 max @ 3156 FPS.
BC on all these bullets is outstanding also. I have luck with the 165 Grain XLC Boattail from my Savage. Shoots 1 1/2 groups @ 100 yards. Good by my standards. I have used this on whitetails and will use the same on Elk this fall. If you are really reloading for the first time I would let someone that is experienced examine the cases for signs of excesspressure. Some of the signs are subtle and it is just good policy.