I'd have thought N203 (Reloader 15) would give better ballistics and accuracy, but Norma 202 did very well in my first .375/06IMP, which has the same case capacity as the 9.3x62.

My loads were considerably higher than these are.
On the other hand, both of my 9.3x62's started performing with improved accuracy when I hit above 2,350fps with 286gr. bullets.(using American/Australian powders)
Nosler's book lists speeds from factory 2,320fps up to 2,420fps for the 286gr. bullets.
Here's Norma's data.
https://www.norma-ammunition.com/en-gb/reloading-data/9-3x62