I've being using Swiss No 2 with a ROA and getting a presentable score. Couldn't get any Swiss so changed to FO triangle.
I couldn't believe the difference, it was if I was shooting with a shotgun.all over the place.Gone back to the Swiss and I'm back on target.
I use 20 grns B/P, semolina filler. and either wad of 50% beeswax/lard or 100% lard over the chamber, which doesn't seem to make a difference with the accuracy.
Has anyone done a comparison with different types of powder?