![Review: Determining the Effect of Cartridge Case Coatings on GSR Using Post-Fire Priming Cup Residue - Florida Forensic Science Review: Determining the Effect of Cartridge Case Coatings on GSR Using Post-Fire Priming Cup Residue - Florida Forensic Science](https://www.floridaforensicscience.com/wp-content/uploads/2017/07/Determining-the-Effect-of-Cartridge-Case-Coatings-on-GSR-Using-Post-Fire-Priming-Cup-Residue.jpg)
Review: Determining the Effect of Cartridge Case Coatings on GSR Using Post-Fire Priming Cup Residue - Florida Forensic Science
![Battery cup primers, history - General Ammunition Discussion - International Ammunition Association Web Forum Battery cup primers, history - General Ammunition Discussion - International Ammunition Association Web Forum](https://global.discourse-cdn.com/business6/uploads/cartridgecollectors/original/3X/c/f/cffeb07f5cf7bcba227af619b8f62b1a6ca3296a.jpeg)
Battery cup primers, history - General Ammunition Discussion - International Ammunition Association Web Forum
What is the disadvantage of having rifles that err on the side of striking the primer too hard? - Quora
![Primer cups, the basic concept works now with 0% fail rate, but the unevenness of cups is persistent, idk if it's because of very fine die misalignment, trimming solves problem though, more Primer cups, the basic concept works now with 0% fail rate, but the unevenness of cups is persistent, idk if it's because of very fine die misalignment, trimming solves problem though, more](https://i.redd.it/47ez10m63tq91.jpg)
Primer cups, the basic concept works now with 0% fail rate, but the unevenness of cups is persistent, idk if it's because of very fine die misalignment, trimming solves problem though, more
Side and top views of a percussion cap, comprised of the primer cup,... | Download Scientific Diagram
![Why do they call it a "battery" cup primer? - General Ammunition Discussion - International Ammunition Association Web Forum Why do they call it a "battery" cup primer? - General Ammunition Discussion - International Ammunition Association Web Forum](https://global.discourse-cdn.com/business6/uploads/cartridgecollectors/optimized/3X/3/7/3726f12a23d1f194bae788502083c0cc18b28e04_2_690x215.jpeg)