I've had my eye on one of these for a while. Evidently these adapters allow you to use either 22 LR or 22 Magnum rounds out of your 223 Contender or Encore barrel (with a rimfire conversion kit for the latter.). I have a spare 223 factory barrel sitting in my closet that I'm not currently using, and I thought these may be the ticket to increasing its utility.

Has anyone tried chamber adapters like these before? If you have, were they decently accurate? I'd primarily use them for target practice (22 LR), and maybe late-season squirrel hunting (22 WMR) when the lack of tree leaves means longer potential shots.