The new Hodgdon 2006 handbook lists data for the 9.3X62. It is held low to pressure for hot climates, I suppose, but does have 270gr. doing 2,548fps with BLC2, 286gr. Nos. Part running up to 2,407 with a compressed load of H4350, and 300gr. Swift SP's at 2,288fps, again with H4350.
: They used 57.5gr. with the 300 for 2,211fps while 66.0gr. was used with the 270gr. These pressures are held below 48,00CUP, while the case is usable to much higher pressures, especialy with the Hodgdon Extreme powders. Higher, but still safe pressures is why I achieved 2,519fps with the 286 Norma using 65gr. BLC2, one gr. less than Hodgdon used with the 270gr. The accuracy came right in with that load, into even 1" groups with the irons (and 2X scope alike).
: Note that '06 brass is usable, but will show greater capacity than does the RWS brass. I am unsure about SAKO brass in comparrison to RWS brass. The 2 Sako 9.3X62 samples I have show 78gr. water capacity, the same as my .375/06IMP brass. In the .375's slightly larger bore, I am running 300gr. RN's at 2,470fps, yet some of the loads listed for the 9.3X62 are too hot for my .375- do be carefull with load developement. Start low and work as pressure signs indicate.
: Incidently, the 2006 Hodgdon handbook also lists data for the 9.3X74R.