"Record-Setting Chambering, Load, and Hardware
Sam was shooting a 6mm Dasher with 32.0 grains of Norma 203B powder, Berger 105gr VLD bullets (unpointed), CCI 450 primers and Lapua brass, neck turned to 0.266″ for a 0.268″-necked chamber. Regarding the choice of powder, Sam says Reloder 15 gives...