Just wanted to post this in a cautionary warning.
Finished watching a fellow on YouTube shooting the rifle with a smokeless powder load of the upper 50's grain of IMR 3031 behind the Hornady 300 grain jacketed bullet.
Now I am telling this cautionary tale as a warning as I believe that this is way over the top in power for the old trapdoor design.
Now I think we could probably get by with a bit more than most manual allow but this particular load is WAY powerful and I hate em in my Ruger #1 let alone a less stoutly built trapdoor.
I hesitate posting the grains of this powder as I'd surely hate to see or hear of a newbie with a bit less experience with these old shooters.
Please be careful with these old sweethearts.