The More You Know: A Primer On Primers -The Firearm Blog
Ammunition Science: All About Primers | NRA Family
Cartridge (firearms) - Wikipedia
Can nitroglycerine be used by itself as a shock sensitive primer for infantry and hunting rifles to replace toxic lead styphnate primer? Not as a propellent, specifically as the primer. - Quora
Basic Components of Ammunition
Priming Compounds and Primers Introduction - Ballistics