Thanks for the information on Zinc.
Another question about cast bullets in 22 &30 caliber. Does anyone shoot Lyman bullets #'s 225646, 311646, 311284?? I'm going to use the 22 in .223 and the 30 calibers in 308 and 30x338. Any information about casting, lube/sizing, or loading these bullets in these cartridges would be appreaiciated. Thank you