The armaments project was overdue for inspection, anyway. I had a section, carefully separated from everything else, where I was experimenting with explosives and munitions manufacture. I was playing with the idea of a shell powered by plastics instead of gunpowder. A primer triggered by an electrical current would remove the need for a hammer. Using ethylene glycol as the binder would result in a compound that was usable under all environmental conditions, including extreme cold. And the stuff didn’t become unstable with age. Oh, and it was easier to work with safely than gunpowder.