vthompson,
I have the trapper in flint and it shoots great... after a few things. You really have to get rid of that rear "adjustable sight". It's for elevation only but the recoil, even with lighter loads tends to shift it and makes it adjustable for windage, esp when you don't want it! I replaced it with the fixed sight that comes with the Lyman great plains rifle, once you dial in elevation it's great. Careful with tapping on the front sight, the brass seems a little softer and tends to bend a little, this might be on the next replace soon list. The lock had a 'kink" in it out of the box, the problem was in the lock mortise itself, a little clean-up and it works great. It feels cheap but once you get the right flint in it, which seems to be @ 5/8 square it sparks close to every time. The best load so far seems to be @ 22 to 25 gr 3f, .490 round ball waly world patches. I haven't benched it properly, just kinda fired it over a piece of rolled up carpet, and groups @ 3-4 " at 25 yards. Interestly for freehand it shoots better not using the triggergaurd hook. I'll post some targets when I can find them, good luck!