Gonna build a 10/22, well you need to go to www.Rimfirecentral.com. It's THE home for anything 10/22. You'll likely find that if you want a good CF bbl, you'll be looking into a Volquartsen. The only other is Butler Creek nd they're well, NOT so good.
carefull though these builds can become very addictive. I started with one and currently have 4 built with at least 4 more coming.