I ran the numbers on some of the loads I have, based on consistent chrono results (here:
http://jbmballistics.com/cgi-bin/jbmstab-5.1.cgi), and the results were interesting.
The linked site says: “The Miller stability value … should be between 1.3 and 2.0 to ensure stability (the military uses 1.5).”
The most accurate load I have is a CorBon-loaded 225gr TTSX out of my 1:10" .340 Wby at 3,140 fps.
It came out to a stability factor of 2.685—way above the 2.0 max suggested by the link.
What is supposed to be the problem with over-stabilized bullets above 2.0?