Help, a little trigger advice puhlease ...

[RJW NZ]

... occasionally someone here, I think perhaps Son, pops up with a diagram showing the angles of the bolt engaging faces and the sear end.

Does any one have an eye on that diagram of the angles on the sear face and could post it again? ...

I've discovered that I have an awkward trigger on a no1mk3, it has grooves in the sear face where the two trigger bumps rub, and other little undesirable treats. The trouble really got going when I discovered that all 6 sears in the spares box have different cross section shapes at the bolt end.
Sears that are probably no4s have a quite square shape in cross section, the no1mk3s are quite rounded. Out of the 6 no two are alike in that cross section.

In the meantime I've been cleaning up the trigger/searface with 1200 wet and dry, and made a very light pass on the sear/bolt end to take off any very high spots, but a great deal of the bad feel remains.
What I'm getting is a stiff, dragging feel as I pull the trigger up along the first trigger pressure, the trigger comes along in jerky movements. It makes identifying the let off very imprecise.

Any ideas what part of the sear or bolt or trigger might be most responsible for that crunchy feel? I can see the striker knob move back slightly as I pull the trigger up.

thanks

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