Trued up the action today. My hoof is busted so I needed to do something that didn't involve walking anyway.
This is the action jig I made. Making the brass tipped screws is a pain; the black Allen screws are hardened.
Here it is, mounted up in my action jig:
I use a mandrel to establish the the centerline of the action relative to the bolt race. I make them myself. It's finicky, as the ID of the bolt race varies by a few tenths between actions- or at least it has for the 3 I've done. Anyway, one of my mandrel a from a different action worked fine in this one, except that I had to reverse it. Cool!
Here's a video of the action dialed in in the jig. Hopefully it'll work.
I squared the action face, squared the lugs, opened up the ID of the threads by .010", and recut the threads.
I used the term "blueprinting" earlier. That's probably an overstatement as I didn't ream the bolt race and fit an oversize bolt. This is better described as a "truing", I think.
Other than building up the receiver (bolt innards, ejector, extractor, trigger, bolt stop, and so on) I'm about out of things to do until the stock and barrel are done.