I can share my data with you if you let me know what powders are available to you.
Forgot to add that I have found that you want to open up the necks to at least 9.5mm [0.375"] the first time [hint: replace your Hornady tapered expander button with one for .375. Run the case necks ONLY over that, then replace the expander button with the original 9.3mm one. I use a Sinclair 0.375" neck expander] then size your brass in the 9.3x57 sizer die. After expanding the necks with the .375 expander, either smoke the case neck & shoulder with a BIC lighter [do they still make those?] or a magic marker. Then with the sizing die set high, run the case in only until you can just close the bolt on a chambered case [so you do not introduce excess headspace into the equation, which is not good for case longevity]. Once you have that, lock your die & you're good after that. Remember too that as you expand case mouths, they grow, so you'll have to trim & square your case mouth the first time. I trim to 2.204". Hope this helps.
Regular old cup and core is where it is at with the 9.3’s. They swat game down and don’t tear up the meat.
I grabbed a 1000 232 grain Norma Vulcans at an obscenely low price several years ago and ammo set for my lifetime.
I've never played with really light bullets in the 9.3, or, for that matter, in any game caliber, but I must admit that I subscribe to the Elmer Keith school of thought [HIB aka Heavier is better / Sectional Density Rules! ;-)].
I wouldn’t call 232 grains light but for the 9.3x62 it is pretty light. It works peaches on deer and hogs.
