Sometimes.... Its just the cap that cause's such a headache!

Re-resting with Pyrodex P & Swiss in my Traditions St.Louis Hawken shooting 70gr 3fg Swiss and Pyrodex P with a .490" round ball and .020" patch lubed with my hunting patch lube. The bore was swabbed clean between each shot.

This was with RWS #11 Percussion caps and Pyrodex P.

 Switching to CCI #11 Magnum caps.

 Now the huge surprise! Swiss 3fg reacted very well to the CCI #11 Magnum cap! Highest shot was #1 on a squeaky clean bore.