Is it "cap" or real "flint lock"?
The freely available NJ "Hunter Education Independent Study Guide" (chapter 6 page 62) has a chapter that contains:
- key terms/definitions
- selecting a muzzleloader
- powder info/specs/granulations
- barrel info
- basic accessory list
Some links:
http://www.muzzmag.com/
http://www.muzzmag.com/Loading%20hints.htm
http://hunting.about.com/od/blackpowder/
Good luck. I cannot wait to build my own some day (one of those w/ the really long barrel). Finish the wood real nice....