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Unread 06-09-2009, 07:08 AM   #3
alvin
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"b" is too close to the normal hammer locking edge. If the new locking edge is added at b, the purpose of half-cocking is lost.

I would think it's much better to add it to the hammer disc under the sear when safety level is on (and hammer down). The hammer head will be locked 3-4m/m away from the firing pin when it's half cocked. Marked by red line in the pix.

Locking/clearence of the newly added locking edge must be manually adjusted by filing.
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