Thread: Overpressure - yeah or nah?

It could be excessive clearance but more likely to be a weakened mainspring which is being overcome by pressure during firing. It needs sorting as a punctured primer can cause bolt face problems as well as high pressure gas leak into the bolt, magazine, etc. The Savage 110 action does give good gas protection to the firer, but nothing is 100% at 60,000 psi!