Cocking Piece Nose/Sear Adjustment

[30Three]

I made a small rig to surface the cocking piece for my No1 mkIII* that I use in competitions.
Ideally I would like to get one machined out of metal; but the wooden version works quite well as a test piece. Certainly better than trying to do it by hand.
The cocking piece angle can be adjusted by a screw under piece in the lower part of the channel. I use a very fine Arkansas stone and oil and take it slowly.
IIRC the standard rifle is 4° off the right angle and the L39A1 target rifle is 10°.
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