I bought one of these when they first came out in .22 magnum. I don't know if it was the gun or the ammo but I had frequent failure to fire issues. Which left me with only one shot.

At about 10 feet it would keyhole the paper target frequently. I think that in the keyhole position a good motorcycle jacket will stop or significantly slow a 22 magnum.

I kept is for about 6 months; I kept the pistol smith at the store busy for those 6 months too. He finally declared it an ammo problem and not a gun problem.

I don't know. I do know that rim fire ammo is not as reliable as center fire ammo. And with the alternative choices now I would not get one of these.