At fifty yards I get 1.5-2" groups with one barrel, and 1-1.5" groups with the other barrel. I have changed the sights so that one barrel has a gold bead front sight (The 1.5-2" barrel) and the other more accurate barrel has a white bead front sight. All groups mentioned are from the bench. I have also mounted a folding peep sight on the tang and removed the two rear sights as they are right at the balance point for carrying the gun. I made up a leather sleeve to go over the barrels in place of a forearm to keep sweaty hands from marring the finish. All in all the gun shoots good. I only wish the lock and trigger were better. The lock is sloppy, and the trigger terrible which maybe the cause of some of my accuracy problems.
Parts for the gun are hard to come by. I had to replace the main spring, and couldn't find one anywhere, so I took the measurements, and bought a spring from Dixie gun works that was close to the size, and filed it down to fit. The hammer seems to be quicker now. TOW has nipples for the gun. They have an odd screw pitch of 1/4"X32.
Hope this helps.
Fyrstyk