Loading data for 45/90

I just bought a 45/90 Pedersoli replica Sharps and want to eventually shoot black powder out of it but at the present, I want to try some smokeless powder loads. I have an abundant amount of SR4759 which I use for a lot of my cast bullet loading. Does anyone have any experiance using SR 4759 with 45/90 loading? I will be using the 535gr Postell bullet. I have looked and cannot find any loading data using 4759. I just need a starting point and maximum data. Thanks

Accurate Arms has smokless data for the 45/90 using thier powder. You could use thier data in conjunction with a burn rate chart and extrapolate. Use your thinking cap!
BIC/BS

I use 28.0 grs for 1450 fps from a 32" barrel.

I would think that using 45-70 mid range loads and working from there would be a start.

agree with 45-70 loads as a start. Unless hunting cape buffalo I've never seen the fascination of shooting heavy loads either rifle or handgun.
I know some folks like it but at 70 body isn't as good as it once was

Here's some reading material related to the OPs question. More can be found by putting "45-90 SR 4759" in the search engine at the top of this page.

http://castboolits.gunloads.com/arch...p/t-15657.html

http://castboolits.gunloads.com/arch.../t-154702.html

http://castboolits.gunloads.com/arch.../t-232901.html

http://castboolits.gunloads.com/show...59-45-70-loads

http://castboolits.gunloads.com/arch.../t-134557.html