A few years ago I did a bunch of load tests with 1 in 48" and 1 in 32" I think it was, and the real and lee mini bullets. The mini was even small enough to lightly paper patch, and it gave very good accuracy in both barrels. The real did quite well in the faster twist barrel, but I think it had more to with the tightness of the barrel, it was a TC white mountain, and kicked like a Mule with either bullet. if you find something that works with 2f black powder let me know, I have 2 lbs sitting around doing nothing. I wouldn't mind having a cheap load to play with this coming summer. Have you tried balls with a light load?