So just how common were the Officer Model Targets's with the heavy barrel? I can't seem to find all that much info about them. The heavy barrel versions that is. I can tell you the action on this revolver is astounding (mfd. 1941). Both in DA and SA. It's also a very accurate revolver. I have no trouble taking down steel plates at fifty yards. None. I know that I've come across info in the past that the actions on the pre-war OM's are the equal of the early Pythons. Well I've never handled an early Python, but the action is better tahn any of the newer Colts that I've fired.