Are you a reloader??
I have been doing a ton of load development for my sendero 300RUM. So far I really like the 210gr bergers with retumbo powder and federal 215 primers.
I have played around with 180gr scirrocco's, 175gr bergers, 185gr bergers, 190gr bergers, 210gr bergers, 208gr A-Max. Powders as follows, retumbo, ramshot magnum, RE22, RE25, US869, Magpro, H1000. You also need to think about experimenting with your bullet seating depths. I was thinking about also trying some 240gr SMK's. Am getting ready to do some modifications to my gun, going to install a wyatt extended box magazine, either jewell or timney trigger and last a nightforce rail and rings. Am heading out in the morning for some more shooting, the Idaho weather has been very unpredictable. Shoot me a PM with more questions.
Chuck