Cabin Creek Battlefield - PERCUSSION CAPS The percussion cap is a small cylinder of copper or brass with one closed end. Inside the closed end is a small amount of a shock-sensitive
![Percussion primers in military ammunition may be either rimfire (left)... | Download Scientific Diagram Percussion primers in military ammunition may be either rimfire (left)... | Download Scientific Diagram](https://www.researchgate.net/publication/281207123/figure/fig2/AS:669546130186264@1536643645798/7-Percussion-primers-in-military-ammunition-may-be-either-rimfire-left-or-centerfire.png)
Percussion primers in military ammunition may be either rimfire (left)... | Download Scientific Diagram
![Primer Can (Eley Percussion Caps) - Jim Rock Historic Can Collection - Southern Oregon Digital Archives Primer Can (Eley Percussion Caps) - Jim Rock Historic Can Collection - Southern Oregon Digital Archives](https://digital.sou.edu/digital/api/singleitem/image/p16085coll5/28/default.jpg)