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Gunsmithing 700SA .378 bolt face...firing pin size?

20171217_172553 (2).jpg Most modern cartridges will crater with the traditional .075" firing pin. It's just physics. As pressure goes up, firing pin diameter has to go down. Latel I do more firing pin bushing than any other job. Simple quick fix. $80. I've never seen cratering after bushing a firing pin to .062. I recommend it for every target rifle. --Jerry
 
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