Before I start drilling flash holes and such, I would try the powder. I really do not think you are going to have problems. I shot black horn out of a Genesis with great results. The Genesis like the CVA and Traditions are of non American origin, and it works fine in there. At the end of the day, the breech plug will require some attention for cleaning, but nothing I felt out of the ordinary. Just remember to use solvents or alcohol when you wipe, or swab, or what ever. Water will do you no good with BlackHorn powder.

I really liked the powder. Excellent power, can shoot all day without swabbing, and it behaves real good with most projectiles. If it was just easier to find and a little easier on the pocket book. But it is a great powder as you will discover.