I just melted a few pounds of pewter to cast into mini ingots. It behaves differently than previous pewter. It doesn't have "tin crackle" when cast thin. It does bend and break like previous pewter. It is REALLY frosty in the top side of the ingots. I cast a RCBS 44-225 swc-gc that came out at 160gr, but turned out beautifully from a cold mold. The melt was at around 450 degrees, so im kinda in the dark. I did melt one questionable piece. A silver plated dish that was unmarked. It bent, carved and cut like pewter. It melted at 450 degrees. Any ideas?