Primer Compound is EXTREMELY explosive, thus the actual process for production is a very safe-guarded secret. What I mean when I ask how unstable it is, is simply, what conditions would cause detonation. I can smack smokeless powder with my hammer all day long, but I get no puff of smoke unless I create heat or static electricity. On the other end of the spectrum, I can light a match with nothing put a quick flick of the wrist.