Good writeup. I expect that 9.5x57 has a way to go yet, in loads.

My 9.3x57, with less case capacity (smaller shoulder dia.) and very light moderate pressure signs runs 2,300fps with 270's and 2,200fps with 286gr. - using both BLC2 and H4895. Varget will do likewise, but is slower than 4895 in this case. The BLC2 is the slowest of them all.