Gear
All of the loads you show are above the 120,00 - 140,000 RPM of the threshold to begin with, actually above 140,000 RPM. Again you mention "limit" and the RPM threshold is not a limit. In your examples you are using 2 slow burning powders, not medium burning powders as I stated in the general RPM threshold description. Using slow burning powders is one of the primary methods to push the RPM threshold upwards. That is what you are doing with your examples; starting at or above 140,000 RPM. The point of the test I gave you to do is to start below or near 120,000 RPM and work up. That way you will see where accuracy is best with that rifle using whatever cast bullet, etc. and where the RPM threshold is as that is where accuracy then gets worse.
To paraphrase you; Gear, don't you read ANYTHING I say?
Close but no cigar, try reading the ballistics book I gave you the title of and try the test with that '06 following my directions. First you will learn and second you will see.
Larry Gibson