Thanks for the info. I am also interested in researching this topic.
To answer the original poster's question... Yes, it is possible for smokeless powder, modern primers, and all other components of ammunition to be manufactured in a postapoclyptic scenario. Benjimin Franklin said it best. "Neccessity is the mother of all inventions". Smokeless powder has been around sence the 1800s. Yes, we've improved on it sense then, but the knowlege is still there. Colt had a manufacturing plant that did not run on electricitty...it ran on steam. Which could also be used to produce electricity. I think if an apoloypse did happen, someone would figure it out.
Just my opinion.
