My 6" Single six is the ticket for me. Sent it off to Dave Clements for the accurizing package and it came back great. If your hold is good enough, it will shoot holes open sights at 25 yards.
I don't scope it because I want the challenge of open sights. For the record, my personal experience is that the TC Contender in 22 mag isn't as good as the accurized clements single six. Now the 2lr bbl I have is great...it's a true one holer, but I've had 2 mag barrels and the SS outpaced them for accuracy for some reason.
If I were doing it over again, I would get the FA 83 varmint special with a 22 mag barrel in 5-1/8 or 7-1/2. It'll cost some dough, but if you plan to use it for a lifetime, it is worth the investment.