I agree... different cases/bores will cause different results. I truly believe load density makes a huge difference in temp sensitivity... though I can't quantify that other than with empirical evidence.
I'm just saying in my application (6mm-6.5mm bores and .308ish size cases) they are virtually interchangeable. All of the loads are in the 90+% load density range... probably a coincidence... but I'll take it
