Well, the board is either fixed, or it's going to run terribly. Cross your fingers and hope for the best. I'm at my technical limit right now.

No 4 Mk1 Firing Pin Depth

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No 4 Mk1 Firing Pin Depth

#1 Post by Locofritz » Sat Jan 27, 2018 7:31 pm

How do you set the firing pin depth on a No4 Mk1?

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Tommy Atkins
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Re: No 4 Mk1 Firing Pin Depth

#2 Post by Tommy Atkins » Sat Jan 27, 2018 7:39 pm

By filing the tip. The pins internal collar should contact its matching part on the rear of the bolt head then the tip is adjusted to (IIRC 0.004~0.008)"

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