Ron, it does appear your MV with the 80.5gr weighed charge is about right if compared to BH209s listed data. You are only roughly 30-70fps less and roughly 4gr less powder.

Im at roughly 600ft IIRC and i shoot mostly at temps below 70F but over 30F. I guess i will need to try mine and see what i get through a chrono with weighed charges. It will be in the Savage with a 24" 1-24 barrel. That is what they used to develop their load data if im not mistaken.