Keith;
My understanding of the Parker frame sizes is they all had essentially identical sized "Bars" & lower frames. The different sizes were based on Firing spacing & breech ball sizes.
I have no idea as to if Lefever actually forged different sizes of breech balls or if they simply forged them to the larger size & cut them down to fit when installing a set of barrels.
In spite of all the Bally-hooing done on all the Parker frame sizes, I believe Lefever had as much variation as Parker. They just advertised their guns by weight & did not mention frame sizes. In any case when the bar & entire lower frame are identical I do not call these "True Scaled Frames", any one else can call them as they Jolly well please, but I am unconvinced.
