You are a prize.
I just looked at the Hodgdon 100-grain data for the .243 and the ONLY pressures in PSI are for the Enduron powders.
I know companies improve powder, because they send me samples all the time to test. BUT, as I stated already, Hodgdon isn't making at claims that the Enduron powders get any "extra" velocity than other powders. All the improvements are in other areas, such as temperature-resistance, a decoppering agent, and "green" ingredients, so they can sell them in Europe.