Also, I recommend Tom Fuller Black English Flints. My Traditions PA Rifle Takes 3/4" Flints, but I'm not sure which size your rifle takes. Go to Track of the Wolf and they have a quick turn around for flints. Also, be sure to check your lock as stated above to make sure it provides lots of sparks. My rifle needed some additional tuning to get consistent sparks -- I needed to bend the cock 7degrees, polished the frizzen spring and the pan.

Also, I recommend to polish your priming pan it helps keep moisture out of your powder and wrap your lint in lead not leather for additional sparks. Just flatten a RB and wrap aroudn the flint.