B bullfrog Well-Known Member Joined Jul 27, 2010 Messages 219 Location Bloomfield, Iowa Jan 30, 2015 #1 Has anyone tried the newer powders like IMR 7977 and RL33 in the 264 win mag? Have they shown any velocity or accuracy advantage over established powders such as Retumbo?
Has anyone tried the newer powders like IMR 7977 and RL33 in the 264 win mag? Have they shown any velocity or accuracy advantage over established powders such as Retumbo?