SU35,
The long-time standard 1-14 twist in the 9.3x62 will easily stabilize even the Woodlight 320 spitzer.
Yes, for sure, knew that.
I wanting the 1/10 twist more for impact effect with the heavier bullets.
In my 35 cals Remington 1/16 twist compared to the Ruger 1/10 twist. The Ruger gave greater penetration with heavier bullets shooting into dry print.