Been wanting to get a .22 pistol for a while now. Whadda y'all think, Ruger MkIV or SR22? What's out there for .22 revolvers that don't cost $700? And finally I've read that the S&W M&P and Walther PPQ .22s are made by Umarex ( the airgun/soft manufacturer) and are "airsofty" in quality. Is this true? Or a total crock?