So; what exactly determines the frame size??. I have for instance one of Lefever's 16 gauge guns built on the XX (20 gauge?) frame & it weighs a "Svelte" 6 3/4 lbs. I also have a 12 gauge Lefever built on the "12 gauge" frame which weighs 6 1/2 lbs. Both are H grades with 28" twist barrels.
The XX frame has a slightly narrower bar but the 12 gauge has a wider firing pin spacing but with the barrels struck thinner. This 6 3/4 lb 16 gauge Lefever has a wider firing pin spacing & larger standing breech than would a 6 lb Lefever 16 gauge also built on the XX frame.
So what exactly does determine a "True" scaled frame, to me it means the entire frame as well as the standing breech is scaled to the gauge. Personally I do not see that simply changing the size of the standing breech while retaining the exact same size bar & body of the action truly reflects a "Different" frame size. I have 12 gauge Lefevers which weigh from the above mentioned 6 1/2 lbs up to 8 lbs which all have substantially identical bar & action body sizes, with only the standing breech & firing pin spacing altered for the individual barrel set. Personally I do not call these Different Frame sizes. Everyone call it as you see fit, but to me the entire frame, bar, body & breech have to be scaled to make it truly a different frame size.
