gut pile I do not have a 12 gauge but have considered the purchase of a Knight TK2000 just for turkey and duck hunting. So this will be an interesting post.

I measure for my smoothbore; with a second powder measure by volume...

50 grain setting = 3/4 ounce of shot

60 grain setting = 7/8 ounce of shot

70 grain setting = 1 once of shot

80 grain setting = 1 1/8 ounce of shot

90 grain setting = 1 1/4 ounce of shot

100 grain setting = 1 3/8 ounce of shot

110 grain setting = 1 1/2 ounce of shot

120 grain setting = 1 5/8 ounce of shot

I was under the impression that on a black powder shotgun you dropped your powder then pushed a plastic wad into the crown of the rifle, and then with a seperate wad, measured the shot you want and dump that. After that comes the over the shot card when all is seated...

It will be interesting to see what kind of pattern you get and at what distance you get that... I personally shoot between 80-90 grains of powder and 100 grains of #6 shot.