Turns out I had a few hundred once fired Remington "black" colored hulls...perfect for "blackpowder" shells...these crimped up good enough with the following:

80grns Goex 2F
Circle Fly 1/2" cushion wad
1oz hard #8's

Loaded 100 of these for trap, and 25 with 1+1/8 #5s for squirrels.