Just my 2c - here is a pic of 2 300gr 9.3 cal Bridgers from Cape buff shot at 10m distance from 20cm barrel with 14" twist - bullets bended their noses (I assume that yaw/distance been the cause) and penetration was "sh€ty" (I bet they tumbled) - same bullet zipped through elands shoulders at 180m distance - only 265-270gr mono solids in 9,3/14" twist for me please.