Gun Glossary
Extruded Primer:
A primer that, on firing, has the metal of the primer cup forced back into the firing pin hole in the face of the bolt. Also known as cratering. Usually a gun problem, not a pressure sign.
Gun Glossary
Extruded Primer:
A primer that, on firing, has the metal of the primer cup forced back into the firing pin hole in the face of the bolt. Also known as cratering. Usually a gun problem, not a pressure sign.
