There are currently 2 manufacturers offering semi auto pistols in 22 magnum, that I know of.
High Standard of Houston, now has the AMT Automag II
Presently costs about $ 700.
Expect a wait if you order one.
Had a few problems with feeding at first. Is much better now that is is broke in.
Nice fit and finish. Accuracy ok.
Excel Arms offers the Accelerator MP-22
Around $ 400 ( Without the Leupold of course! )
Pistol is very large, 8" barrel
Eats anything I feed it, without complaint.
Accuracy is excellent.
I really like this pistol.