hi all, first post here. im from eastern WA and have been working with 215 bergers in my 300RUM. I am starting to get some pretty good results so far i am at 90.2 grains Retumbo and 3.790 OAL. with rem brass and 215 mag match primers. development group was 5 shots at 2 inches shot from 200 yards. 5 were about an inch group and the other was an inch away to teh left. i think it was me. my next session i have same thing loaded but 5 at 90.5 and 5 at 91 grains. my gun is a sendero with DE brake, action is bedded and wyatts mag installed. EGW 20 moa base and burris FFTAC 30 6.5-20 scope. just starting out with longer range stuff outside 500 yards, but have hunted my whole life, bow and gun.