Hey Inspector,
Saw your old post, really enjoy shooting mild / reduced loads in vintage bolt, lever action & singleshot rifles.
Do you shoot cast bullets?
Best powders I've found for reduced rifle loads are red dot, blue dot, unique, trailboss & tite group. Don't know what your goals or uses are? I'm into making mild accurate loads for young shooters, recoil sensitive, or for farm eradication as well as putting less wear on our vintage guns.
Mild & subsonic are so fun to shoot. Been doing this for over 25 yrs.
Hope to meet you Bro.