OK bought new bolt head to change 112 .223 cal. to .243.
Surprise bolt has large firing pin. No problem have a #25 drill bit.
Can anybody tell me about how far to drill? How easy is this to screw up?
OK bought new bolt head to change 112 .223 cal. to .243.
Surprise bolt has large firing pin. No problem have a #25 drill bit.
Can anybody tell me about how far to drill? How easy is this to screw up?
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