RE: 300 RUM
We shoot the 200 grain Sierra hunting bullet in the three 300RUM's I load for. We use RL25 powder. I will not list the grains, because we load them HOT. The cartridge is devastating on any game animal we shoot. When guy's want to argue about killing ability of cartridge's, I would like for them to personally witness what this cartridge is capable of. They would throw the sub 25's over the hill.
I am going to try a pound of Retumbo in January, but I do not think I can improve the performance of RL25. Tom.