I'd like some others to jump in here about what type of tune up is most appropriate. The bolt can be adjusted to pop up in the leade so it doesn't score the revolver, that's a common problem. Another is a gun that locks up- bolt into notch but then you still have to pull the hammer back a ways before it comes to full cock. After locking up you should only have to have the hammer move back slightly. THEN there are guns that cock BEFORE the cylinder locks up but a lot of shooters don't realize this because they pull the hammer back as far as it will go.
SO.... for the newbie that wants to smooth up and tune a percussion revolver, what do a lot of you think are some good places to improve?