Have an RG-38...2" barrel 6-shot ".38 Spezial" {as it is marked} reasonably accurate
Don't own, but have shot .22LR derringer...so long ago I don't remember the brand. also shot a Bersa Thunder .380...a good quality shootin' iron.
had another RG in .22 don't remember the model, but couldn't hit a 9" paper plate more than 1 yard [yes, 3 feet] away. If ya put the muzzle inside someone's nose and fired, you would probably miss the sinuses...
Not one of the "SNS" guns, but also had one of the FIE knock-offs of the Colt SAA-style .22LR/.22Mag with a 5" or so barrel. Had a better chance of hitting target more than 5 yards away of you took the ammo out of the gun and threw it at the target.