I'm shooting black powder in old lever guns and figured since all the champs in silhouette competition were using Swiss 1.5 that that would be the powder I wanted. So I bought a case.... Turns out I get better accuracy with WANO! Swiss fouling is dry and crusty, WANO is moist. First two shots with both powders group with in an inch and the next three start to move out, as much as 5 to 6 inches with Swiss and getting some leading too.. They only go out 3 inches with WANO. So, can I solve this with a bullet that carries more lube? I wipe after every five shots. I'd hate to have to wipe after every shot, kind of defeats the purpose of a lever gun. Certainly they had the solution to this 130 years ago.