Try 90 gr of Goex 2f powder, an over powder wad, a plastic shotcup, (i know, not traditional, but gives atighter pattern unless you make paper shotcups), about 1 3/8 oz of shot which would be setting your powder measurer to 100gr and using that to load the shot, and an oveshot wad. This will give you a starting point. You can adjust powder and shot to get the bast pattern. I would also reccomend CCI Magnum caps and a Hot Shot nipple on the Trapper. I had one of them and had a lot of ignition problems until i switched to them.