Mild steel no matter how thick will be cratered by most centrefires out to around 300 m, and close bits can come back at the shooter, so at a minimum bis 80 hardness is recommended (wear steel is a...
Type: Posts; User: Marty Henry
Mild steel no matter how thick will be cratered by most centrefires out to around 300 m, and close bits can come back at the shooter, so at a minimum bis 80 hardness is recommended (wear steel is a...