Wheel weight lead question

[Johnny Tremain]

I learned empirically that "pure" WW projectiles can shatter at terminal velocities approaching 1200fps

Huh? Wha?
My flinter does 1630fps with a standard load, and 2050fps with a max load.
Even my PBC do 1450-1600fps, down form 1750fps where I started off at.
and them be 460-540gr pills.

 

[VADSLRAM]

I am not going to risk Metal Fume Fever for some cheap wheel weights. I had a friend die from complications of it. His name was Paw Paw Wilson (Jim). If you don't believe me google him.
Inhaling large amounts of zinc (as zinc dust or fumes from smelting or welding) can cause a specific short-term disease called metal fume fever, which is generally reversible once exposure to zinc ceases. However, very little is known about the long-term effects of breathing zinc dust or fumes.

You notice the white residue when welding on galvanized but melting even pure lead without proper ventilation is a bad idea so I can't imagine a time when you could get enough zinc fumes to be a problem. Also if you are getting enough blow by from shooting to effect you... congratualations. I wish I could shoot that much. These are all from WW and shoot dead on every time I get a chance.