Good reading on chamber design for semi-auto 22LR? Other than searching the forums and people's opinions, not really. I have had chambers I have felt were too tight and some that were too loose. Barrels from Kidd, TacSol and Beyer, in that order, have given me the best success from an accuracy perspective. TS and Beyer are less accurate, but they will run past where the Kidd needs to be cleaned. But I have not tried all of them. Kidd is a full barrel, so it will weigh more than the TS or Beyer that use a steel tube inside an aluminum barrel.
The tenon dimensions and the freebore are also issues. Most experienced 10/22 folks understand that the stock barrels, cut to SAAMI have a chamber that is too long and often not concentric and fit loose to the receiver. That is why most end up with an aftermarket barrel, and when you consider costs, buying the parts and building yourself, or spending $500+ on a high end maker, is the preferred path. While I have researched and shot a few of the threaded barrel options, I just don't see the need.
If you really like a factory Ruger, you can always buy it and send it directly to CPC and have him work it over. He does a great job and I have seen where his work has cut group sizes by a factor of 4 times.
http://www.ct-precision.com/ruger10-22.html
Brownells sells receivers, on sale for like $65 right now and they are a good path to build your own.
https://www.brownells.com/rifle-part...rod116208.aspx
You can buy a complete reworked bolt from CPC for $90. Pick a barrel and then you are down to trigger and stock.