Fairly long cartridges just don't work too well with the auto ejecting top-breaks. If the action is opened slowly the extractor can snap back down and cause the long case to sort of "cock" askew before it clears the chamber, and binds the cylinder momentarily.
They weren't meant to be opened slow. If you turn the gun on it's side when you open it you have no problems at all. My DA .44-40 works just fine. So does my .32, .38 and .44 russian S&Ws as well as my Uberti schofield .45 and .44 russian replicas. Ejecting spent shells isn't rocket surgery.