There is information missing from this chart.
Is both the black and smokeless load the result of loading for the same velocity? If so, then that would be a correct representation.
HOWEVER, this is where you simply reduce the smokeless charge until the curve is the same without undercharging...
Here are some statements by Smith & Wesson regarding smokeless powder use as well as a dated later.
1900 - "While we do not guarantee our Revolvers when used with smokeless powder, and strongly advise against reloaded ammunition, we do not wish to detract in any way from its merits or...
The graph is misleading as presented. Although it is by all means correct from an "ignition-to-time burned" standpoint (for a shotgun load), it depends on what powder is used and how much is used, as well as the desired velocity to be achieved...in comparison to a given black powder charge (for...
That is awesome because I was going to recommend Reloder 7. I have never tried those bullets and it looks like they are out of stock.
Winchester did use a total jacketed bullet although not well known. I would like to try both some day but my testing days are basically done.
Reloder 7 is the...