These are the bullets I have worked with to one degree or another so far. From left to right, Barnes 250g TTSX, Hornady 300g SPBT (discontinued), Sierra 300g Game King, Cutting Edge 300g MTH, and Sierra 350g Match King.
Now that I have the 300g Game Kings shooting acceptably, I will see if I can obtain similar results with the Cutting Edge bullet. Based on previous behavior, I would expect the MTH to produce 2800+ fps with RL-17 if its accuracy node is similar to that of the 300g Sierra.
On the far right is a 350g Sierra Match King loaded to a COAL of 4.040", which is slightly more than a .010" jam. I shot a basic velocity runup across my Magnetospeed chrono using RL-22. The max loads topped out at 2600+ fps with no pressure signs in 85* weather. If I can get this bullet to shoot, it would give me an affordable long range practice load and may just cause me to forget the 300g class cup and core bullets.