In my 2 1/2" 12 gauge guns I use a Cheddite hull & primer, 19.0 grains of Hodgdon International Clays, a Gualandi 1222 wad, 1 oz of shot with a 6 point star crimp at 1150 fps. Pressure should be around 7300 psi.
This load is my modification of a Hodgdon published load using 20.1 grains of International Clays, Gualandi 1225 was in a 2 3/4" Cheddite hull at 1235 fps @ 7700 psi.
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