jessejames did write: " I have been 180 Sciroccos with mixed results. 96 gr. of RL 25 gave me a .5 inch group once but never since. That one still buffaloes me."

Sounds like what I was writing a couple weeks ago, except I had a Browning Stainless Stalker instead of jessejames' Winchester. Very inconsistant groups from that 300RUM. Tried four different propellants and five different bullets. Clean, clean, clean and still got lousy groups. The length of mag in the Browning would not allow me to get the OAL out where smoking the cartridge said that I should have it! If I dropped down in bullet weight and/or velocity, groups improved, but then why have a 300RUM if you can only push 165gr bullets, or have to slow 180gr bullets down to 3000fps. Hey, I am happy for others who have reported great sucess with the 300RUM. I simply gave up and am now very happy with a 7mmWSM in a Winchester Ultimate Shadow. 1 1/4" groups at 200yards, pushing a Nosler 140gr Accubond at just over 3300fps at 10' from the muzzle. I expect to get better groups after honing the trigger.
Maybe the reports are going to prove to be incorrect, but I am beginning to believe that with the newer, premium bullets, one can take elk with a 140gr bullet just as one used to with a 180gr bullet.