Stuff is terrible! I'll take it off your hands
Actually, it is the best BP substitute I ever found. I've used it in 30-30, 32-40, 38-55, 40-65 and 45-70. Plus 56-50 Spencer and .45 Colt. The last two had mixed results, but still worked okay.
My ML rifles liked it, too, but requires a hot 209 primer to get it going.
Tried it in shot shells, but I don't think it was intended for that application.
Best loads were 100+load density. A little bit of compression helps. I always used a 0.060" veggie wad below the slug. There are published loads you can find online for several BP cartridges (Western Powders).
Leaves a bit of fouling in the bore, but I have shot over eighty rounds in a match without cleaning and never noticed diminished accuracy (usually the last shots being made at 400-500 yds.)
Pick up some Blackhorn Cleaning Solvent; best stuff for quick cleaning.
If you can find it now, it's close to $100.00 a pound
Consequently, I've had to resort to more conventional smokeless and still trying to get the results I had with BH209.
Tested many of my loads with a Labradar and obtaining SD'd of +/-10 was not unusual.
If anyone knows about future production, I'd appreciate hearing it (not intending to high-jack the thread).
Like I said, I'll be glad to take it off your hands
Mike.