[lamarw]

The best seal is to go ahead and load the round. I would have the same concern as others about moisture when storing primed brass in a plastic bag. I leave my primers in the original new box containers until I am ready to fully reload the round.

Do you find any sort of an advantage for pre-priming your brass? Although, I know you can purchase pre-primed brass.

I understand there is a safety reason for having each little primer in its own little separated partition. You do not want to empty them out in bulk in a single container for extended periods such as a can or jar. Others have warned against this practice in prevous Forum postings.