It's pretty easy to get 2500 fps with 286s in the 9,3x62 at "safe" pressures with several powders. I know this because have had such loads actually pressure-tested, and they were right around .30-06 pressures of 60,000 PSI--which are considerably lower than the 65,000 PSI SAAMI max pressure of a number of other cartridges.
And actual pressure-tested data beats pressure-guessing: anytime, whether with "pressure signs" or QuickLoad.
