thirty06
03-19-2010, 06:37 PM
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?
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?