That “fellow” didn’t “invent” the cartridge he just made up a name for it and made a wiki page. He actually started in his quest wanting a 45-70 Walker and I had a hell of a time explaining that the rims were too large....but he insisted. Then he started trying to quote internet musings about 444 marlin fitting in a 45-70. I explained this a lot and was already building my “Brimstone” Conversion (Dragoon with barrel cut back, Walker length Kirst and 460 chamber) and suggested that....he poo pooed the idea. Eventually I told him I wouldn’t build him one because he just seemed too Squirreley. He got Dave Clements to rechamber a Howell drop in (which I wouldn’t trust in this caliber) and proceeded to “test” his loads with a string and tire and partial charges, leaving tremendous airspace in the cartridges. I tuned out hoping to not see the carnage. I do a lot of these on a custom basis and do quite a few mods to the arbor bedding and the arbor attachment. No customer issues all these years. Ballistics with a short barrel will be terrible......
My customers are reporting 1250 to 1400 FPS depending on barrel night and brand/granulation of powder
In my case it had better be a Smith if I hope to put it back together on the first attempt
