Oskar,
Are you considering patching cast or jacketed bullets?It seems that rifling such as this would cut the patching material all the way through(I've seen this type rifling,it looks like the lands are knife blades).I would suggest getting a 9.3mm mold(around 200gr)if you want cast bullets, or buy the Buffalo Arms bullets for Jacketed.If you still want paperpatched bullets, I defer to Sharps4590.
Mike