I got 2,170fps with 45.0gr. H4895 with NO pressure signs at all. I do not see that as chasing velocity.

It will be interesting to see what you get with 40gr. or 41.0gr. & the 286gr. Privi.

I see no worthwhile reason to load the 9.3x57 below the 9mm Mauser or the 9.5x57.