I discovered that a quality lock and barrel make all the difference in the World when shooting flintlocks. Back in the 1980s, I bought one of those Hatfield longrifles that Cabelas was carrying at the time. It looked really good, had nicely figured wood, but half the time the lock wouldn't even set off the priming powder in the pan and it had a weird touch hole with a curved channel leading into the breech. After a couple of frustrating years, I sold it and ordered a custom built rifle with a Chambers lock and Getz swamped barrel. What a difference! So do quality hand knapped English and French flints, I get mine from Track of the Wolf.