Doc-built percussion sidehammer 12 smoothbore over with 58 rifled under, actuated by old original back-action locks with double triggers. Nipples are located on screw-out drums equipped with clean-out screws. The right
trigger fires the shotgun barrel (on top) which is equipped with a
screw +in-out Colonial full choke, the rear trigger fires the 58 rifle
barrel (on the bottom) Rifle barrel is by GreenRiver RifleWorks. Both
the 480 gr .715 patched ball fired out of the smoothbore barrel (with
.730 choke) and the 280 grain .570 ball fired from the rifle barrel hit
point of aim one inch high at 25 yards, which puts them 3 inches high at
The right drum and nipple is in the usual location but the left is quite low, requiring a long nose on the left side lock.