Re: Accurizing a 10/22
I have bult several 10/22's over the decades, and the simplest route was to get a .920" diameter Butler Creek Target Barrel and Stock setup, then replace the trigger group internals with the Volquartsen parts set. I also added the oversized magazine release, and traded bolts with my Brother for one which had the bolt face reworked (not sure how) for accuracy by someone up in new England.
Dime-sized holes at 50yd are common results for this process.
I have a set of ten magazines for events that require single loading, and load each one with one round before the match stage. Saves a lot of time and fumbling during the stage, and it's a simpler matter to reload a single round into each of the ten all at once, rather than pop out a single mag and reload it ten times.