Howard Roark
Member
"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 the same accuracy and speed as 203B but he “just happed to have 8 pounds of [203B] and decided to use it in this rifle.” Interestingly, Sam was jumping his 105s about forty thousandths. That’s right, .040″ OFF the lands. The record gun has a BAT MB action, Shehane Tracker stock, and Krieger 29″, .237″ bore, 1:8″ twist HV barrel."
Outstanding!
http://bulletin.accurateshooter.com...-records-with-0-686-50-pt-group-at-600-yards/
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 the same accuracy and speed as 203B but he “just happed to have 8 pounds of [203B] and decided to use it in this rifle.” Interestingly, Sam was jumping his 105s about forty thousandths. That’s right, .040″ OFF the lands. The record gun has a BAT MB action, Shehane Tracker stock, and Krieger 29″, .237″ bore, 1:8″ twist HV barrel."
Outstanding!
http://bulletin.accurateshooter.com...-records-with-0-686-50-pt-group-at-600-yards/