Re: Most accurate .22 pistol for under 1k
The first thing I learned about accuracy with any .22 rimfire was that they all seem to do well with some ammo, and really crappy with others. Whatever .22 you get, buy a box of every kind of ammo you can find, and when you find the holy grail for your gun, buy every bit of ammo you can find, with that lot number. Just changing ammo, can result in groups going from 1" to 6" at 50 yards, in some barrels.
That said, you really didn't say what you wanted to use the pistol for.
If for IHMSA silhouette, I use an old, Anschutz Exemplar which, with the ammo it REALLY likes will produce groups under 3/8" at 50 Yards.I can use cheap, Federal bulk in it, and clean the chickens, pigs, and turkeys, but, have to go to better ammo to clean the rams.
If you plan to shoot bullseye, and already own a 1911, a Marvel 1 conversion will easily do under an inch at 50 yards with ammo it likes.
I have an old, Ruger MKII, Government that will hover about an inch at 50 yards, with ammo it likes.