I have a pile of stuff cast that I may or may not get loaded this year. They are mostly on shelves in the garage, which is the only place I have for my bench. It gets pretty cold in there in the winter, and in the late afternoons of the summer when the sun beats on the door it probably exceeds 100F a number of times every summer. Do I need to worry about the BLL on finished boolits melting or deteriorating under these conditions?