WHAT DOES FEDERAL 209A PRIMERS MEAN?

The same primers that Federal works by using in their higher-excellent ammunition. Made to exacting requirements for trusted ignitionDanTheFarmer claimed: If I sub in a Fed 209 A primer in its place will I however be Protected? It appears tough to believe that a primer substitute would raise me from 8500 psi to about 12000 psi but it is normally fa