I have about three hundred pounds of stick on WW's that I was wondering what to do with. I am currently casting 9mm, 38/357, 40 cal, 44, 45 ACP, and some 308 for my 30-30. I was told by some local casters that the pure lead is only good for muzzle loaders. Is this true?? Is there something I can do with the pure lead WW's?? Can I mix it with my Clip on WW's with some tin?? Thanks