I have a bunch of accurate bolt .22s and have been through a zillion others through the decades. Right now I have five that I would consider truly accurate. I enjoy them all. They include the following, from least accurate to most accurate. Group averages are given for hundreds of groups, all five shots center to center at fifty yards. Most groups were shot with CenterX:

5. Winchester 52 reissue with Leupold 3 - 9 shoots right at .45 inches center to center.
4. CZ American 452 1 of 1000 with Leupold 3 - 9 and trigger kit shoots .4 inches.
3, Springfield 1922 with 8x Lyman Junior Targetspot shoots low .3s.
2. Sako Finnfire, heavy Lilia barrel, Jewell trigger, Leupold 20x shoots .3
1. Custom Anschutz 1710, Canyon Creek sporter stock, Leupold 18x, shoots .25.

They are all a hoot to shoot on my backyard 50 yard range. I also get great pleasure out of shooting my classic .22 "plinkers" at 50 yard steel swingers.

Really enjoying this thread!