I want to work up some loads for a 50-90 Sharps with smokeless. Have shot well over 2,000 of Goex and Swiss but would like to try smokeless now. Any thoughts on powder/load developement? Used 3031 in my 50-70 but would like some thoughts on which powder for the larger case. Will be shooting lead projectiles (20:1) and iron sights. Thanking you in advance,

Dutch

I've never fired smokeless from my 50-90, but if I was going to, I'd probably start with AA 5744 (used to be called XMP-5744) made by Accurate Arms. I'm sure they have loads listed in the AA reloading manual too.

I like reloader 7 in my 50 alaskan, I bet a lighter charge would work great in a 50-90.

I use 5744 in my 45-120 with 550 gr. cast with great luck. Burns a bit dirty but great accuracy.

Use SR4759 or 5744.

Both have about the same burn rate as 4227.
SR4759 is very bulky and takes up a lot of space in the case.