I had my best performance with BLC2 and H4895.

I'd about lay odds with one of the new powders and a M98, you might hit 1920's, 9.3x62 ballistics, 2,360fps with a 286gr. I just about did 2,200fps (2,170fps) with a 300gr. in my M96, with no case web expansion over FL sized.(well, .00025 and .00015 which is only 1/4 of a thousandths of an inch). THAT much expansion + a bit, is usually allowed on the head of the case, right up to .001" where there is none on mine with ANY load I used.
BLC2 and H4895 have been my best powders in the 9.3x62 as well.