Originally Posted by
Dave001
I got 120kg of lead from the local scrap guy, 35kg was COWW, the rest was already in ingots, and was suppose to be COWW, but who knows, I tested for Zinc using hydrochloric acid, the lead ingots didn't react, so I melted the whole lot together, new ingots are around 12-13 bhn, water dropped projectiles are showing around 15-16bhn.
I'll play it safe and acid treat them, I'm guessing a 20% hydrochloric acid/water mix for 20 mins or so, should do the job?
Thanks for the replies, much appreciated.