Well, I carried that rifle a lot of people told me I'm not supposed to shoot to the range yesterday and shot it.
405 grain hollow base 45-70 bullet, card disk/lubed felt wad, cotton filler, and 50 grains by volumn of Pyrodex R-S manually handloaded.
The rifle survived a 3 round sandbag/lanyard test followed by 7 rounds fired from the shoulder, I only loaded 10 rounds since I wasn't sure it would survive the test firing, the rifle functioned fine and the recoil was surprisingly light.
The only issues that I found were a smooth but brutally heavy trigger pull that's going to take some getting used to and the rifle shoots high (which I expected) and a little to the right.
I still need to work on the load/filler combination, the first 3 rounds at 25 yards grouped at about 1.5 inches and I think it will group better once I get used to that trigger.
The next 3 rounds at 50 yards however did a vertical string on me because I used too much filler.
I'm going to take it to the range again next weekend weather permitting and load the rest of the brass like I did the test loads and the first 4 rounds.
I should have let well enough alone but I wasn't sure I was compressing the Pyrodex enough so I added more filler.
All in all I was very pleased with the way it performed.
Jim