Just noticed that the 320 gr. Weldcore RN is the same length as the 286 gr. Weldcore PP, and the cannelure looks to be in the same place as well.
Should make the powder capacity a little easier to figure.
P.S./MD: Seems to be a 3-4 gn. disparity b/t your published load data RE: the 9.3x62mm/Big Game, as compared to the Western Reloading data sheet for a given velocity.
Know your data is (+/-) a decade old.
Are you aware of this, a/o, has there been a change to the powder?
