The data certainly isn't interchangeable, but they are such similar burn rates, they'll be close (43-44 grain area for .308). As to how temp sensitive, I can't quantify it... didn't have a chrono back then to tell you, but I know I shot that same load on a hot day (summer '08 - don't remember how hot) and I started getting pressure signs on the headstamp (vs 55 degrees when I shot that group).