yodogsandman
Well-Known Member
What effect does curing powder coatings in a 400*F convection oven have on a bullets heat treated or water dropped BHN hardness? Anyone ever check?
I'm thinking that a common cure time of 15 to 20 minutes isn't enough to change it much. That the bullets don't get heat soaked long enough for much change to happen.
It seems that most casters that PC their bullets believe that the BHN returns to it's air cooled BHN after the cure. That BHN is only dictated by the percentage of lead, antimony, tin, arsenic, etc.
I'm thinking that a common cure time of 15 to 20 minutes isn't enough to change it much. That the bullets don't get heat soaked long enough for much change to happen.
It seems that most casters that PC their bullets believe that the BHN returns to it's air cooled BHN after the cure. That BHN is only dictated by the percentage of lead, antimony, tin, arsenic, etc.