I have some good loads using H4831 and RL22 both, as i think these are the best two powders that shoot out of my rifle. I have a couple good loads for different bullets, but none of them i would trust for elk. I have never hunted elk, but i would imagine they can take a good hit, as a friend of mine demonstrated by hitting one in the "sweet spot" with an 8mm Magnum(200+ gr bullet) , and the elk ran off like nothing was wrong. He did find the elk about 100 yds from the original impact location, with a perfect shot.

how is the penetration on the Sciroccos?

Thanks for the info guys. A buddy of mine shoots a 300 RUM and he has a box of 168gr TSX bullets, so i'm gonna try a few.