Rusty and Capt Curl's comments certainly have me thinking. Appreciate the discussion. Will have to do some testing. Perhaps leaving some Puff-lon filled rounds bounce around in the glove box for a while( or perhaps a tumbler, to hasten the process, and then pull the bullets and see how things look. Also would like to leave them in a hot car for while, and see if there's any merit to the coagulation theory. If it looks like there's even a hint of trouble with Puff-lon, I'll chime back in. I certainly want my rifle to be foolproof, as it will most likely go with me to Africa one day. Thanks again for the constructive comments all.

Jeff