Good to hear someone else is loading up some brass shells with black powder as well. I'll tell you what has been working for me.
I use Magtech 12 ga. brass. My powder charge is 82 grains (3 drams) of FFg Goex, measured by volume. 1 1/8 ounce of shot. For wads I use two 11 ga. nitro wads on top of the powder, one waxed 11 ga. fiber wad, and a 10 ga. overshot wad. All wads are from Circle Fly. After pressing in the 10 ga wad with a 3/4" dowel, I seal the edges with Duco cement.
The same volume of Swiss powder will give slightly higher pressures and velocity. You may have to experiment with the powder charge a bit after seeing how your gun patterns. If you think your pattern could be a bit tighter or more uniform, try dropping down your powder charge by 5 to 10 grains and see how it performs.
I have a grade "G" 12 ga. hammer gun from 1885, and this load performs very well in it.
Last edited by Forrest Grilley; 01-06-2010 at 01:20 PM..
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