You peaked my interest - I have 7 booked 1.25 lead loads from BPI laying in front of me all with identical components except the powder - pressures range for 7500 psi with 800X to 10,000 psi with Unique and 10,500 with WSF. IMO any two 10,000 psi loads place indentical stress on the firearm. If the pressure curve was significantly differnt the slower powder (providing same components) would show a lower pressure. Just out of curiosity what is your pressure goal for the Damascus barrels? Just my thoughts.
