Szihn, shame mate that this calibre hasn't taken off; so don't be disappointed & please keep chipping away!
I have to agree with Daryl, even the "small" 9.3x57 still has a good size clout, even when compared the 9.3x64! All are good rounds because they all had good projectiles from the start.
You'll get there mate, it took me years to get my barrel - its well worth all the trouble in the end.
That's why I love this type of reloading, something apart from the 'common' calibres & getting it going just as good or better than factory specs - which I can with mine without busting a valve!
Keep up the good work matey
Cheers
93x64mm