Bolt assembly pin

[joeb33050]

I think I'm getting it. I open and close the bolt with a case in the extractor while setting headspace. Mr Furious and wbm don't understand why I take the firing pin out.
Do you set headspace on a closed bolt?
Thanks;
joe b.

[short round]

Why not remove cocking pin, instead of bolt head pin ? I normally remove the trigger & give the action a good cleaning when swapping barrels, there is spring resistance on opening, none on closing, without trigger.

[Robinhood]

I think I'm getting it. I open and close the bolt with a case in the extractor while setting headspace. Mr Furious and wbm don't understand why I take the firing pin out.
Do you set headspace on a closed bolt?
Thanks;
joe b.

Not sure if this is serious but the only way you can set the headspace is by closing the bolt. The resistance of closing the with the firing pin installed is completely different than not being able to close the bolt at all with a go or no go.

Step 0ne:
With completely assembled bolt;
Install Go Gauge. Close bolt.
Pass? Tighten nut.
Cycle. Go gauge must be extracted.
Fail? Adjust until pass

Step two:
Install No Go gauge. Close Bolt.
Bolt closes you are good to go. Happy time
If Bolt closes adjust till fail and repeat step one and then step two once more to be certain of correct adjustment.
There is a small tolerance to work with here..

I like dfrosch's (AKA Underdog) idea if you are worried about cocking/ hand-off resistance or damaging your firing pin.