Its my brothers 300 Rum. I'm developing the new 200 gr eldx bullets. I'm running Imr 7977.. Its been a tough gun to get to shoot, so that's why I'm gonna try 7-8-9.. Maybe 3-4-5 was a fluke node.. I just hope 7-8-9 ain't a scatter node and I can pull it together with seating depth.. Thanks for...