On Mar 24, 12:24*pm, The Real Doctor
wrote:
On 23 Mar, 07:45, Ian Burgin wrote:

Lead has a melting temp of about 500 degrees C ...

It might be worth thinking about using plumber's solder instead. It's
a lead-tin eutectic alloy, which means it melts at a significantly
lower temperature (183 degrees C), but still has a high density (84%
that of lead).

Ian

Do you know of good source for this alloy (I don't know if I want to
go to Radio Shack to buy 40 lb of solder? My wallet would be way too
light and then I would have to buy even more of the alloy.