Have owned several MKII's and several Single Six revolvers... for the most part the Mark II's were more accurate, probably a lot of that was trigger pull... but all my single six's shot well. If you want target accuracy, buy the auto... if you want a field carry gun..buy the revolver... 22mag is a big bonus IMHO. A Model 17 Smith & Wesson on the other hand.....fantastic revolver!
