THAT is special!!! A John Blissett. I have the right hand Blissett side lock for a single bl. percussion shotgun and a beautiful lock it is. The barrel was holed with rot, however the rear 12" was fairly good. I have a liner for it but never got past the planing stage for making up a pistol on these 'parts'. Some day, maybe.
That is a gorgeous gun. Wonderful, and to get it shooting so quickly & seemingly easily - well done.

They are crossing a bit with all loads, but out to 100yards, will not matter.