recently I signed up to a group on Facebook "Reloading and casting for polite adults" this one guy posted that it's ok to add zink to your lead that you only had to run it hotter to get good bullets. I told him that it was a terrible idea and that if he shot these bullets at a club range it would screw up other members that salvaged this lead for casting. he got all defensive about it. He was giving this info to a new member that asked if he could use zink for casting his bullets. I advised the newbie to buy Lymans bullet casters handbook for the correct information. Was I right and how would you reply to these guys that push this bad info? whenever I'm smelting lead I'm ever so careful not to let any zink get into my alloy.