Hello, I am a new reader of this forum. My main interest is black powder rifles - but I recently decided that I needed a Parker hammer gun and black powder loads to shoot ducks. I purchased a 12 gauge parker hammer shotgun with damascus barrels. My research into non toxic shot showed that bismuth or tungsten matrix shot are the only real alternatives for shooting in these guns - is that the general concensus? Is ITX or Nice Shot suitable for these guns? Does anyone know of a source for bismuth or tungsten matrix shot? Thanks for your help. Mark