I posted on this a while back but couldn't relocate it so here goes. I'm picking up my rifle from the gunsmith on Monday. It took a while to get the throating reamers for the .300WM but with a little bit over a month to go till Colorado Elk season I've got time to work up a good load for the 180 grain Federal Trophy Bonded bullet. I picked up two Lbs. of RL26 before it disappeared from the shelves so that should be more than adequate. Unfortunately the throat on my rifle was so short that seating even short bullets was quite an intrusion on the powder space. Fortunately the magazine box was plenty long enough so I did have room to make adjustments. Went from an OAL of 3.225 to 3.640. Quite a difference! The Trophy Bonded is a long bullet so this should work out well. I did shoot this bullet before throating and it was accurate 3/4" at 100 yds. so this should be interesting. Will mention results as soon as available.