I've used 800X 5.2g to 5.8g with the Lee 158g TL SWC. VERY accurate but some unburnt powder especially at the lower loadings.38 case
5.0-5.9 with a 158
4.6 max with a 200
357 case
8.9 max with a 158
7.5 max with a 200
both are lead bullets, drop .3-.4 for jacketed.
This was my magnum shotshell powder for decades.i have a jug still, but it makes good 20ga. shells and is pretty outstanding with lighter 1oz type 12. ga steel shot-shell loads.
I use it a lot. I even use it in my 223 with cast bullets. I'm talking 700 x..I have one of those old square metal 5# cans of 700x that is still sealed.
One day I'll try it in some revolver loads.