0Railes 9 years ago You're looking for a compound known as "Armstrongs Mixture". I reload my own custom shotgun shells mixing my own powders and primers. In a primer the primary oxider is potassium perchlorate, which creates a compression sensitive compound. Do your research and take the proper steps to remain safe. This works great to trigger both smokeless and black powders. I have used it manytimes.It boggles my mind why people who don't have any real information always answer with "don't try it". That additude does not reflect the spirit of this community.