Element, Melting Point °F, Density lb/in^3
Tungsten, 5432, .71
Tin, 450, .26
Zinc, 786, .26
Lead, 621, .41
An alloy consisting mostly of tin and zinc with just enough tungsten to raise the density may work as long as the melting point does not get too high. Lead, tin, and zinc are often alloyed to get different properties. Their melting points are fairly close together.
Brass or bronze may be a suitable substitute. The MP is around 1600°F and density is 25%-30% less than lead.
Gold is much denser but has a melting point of nearly 2000°F. Tungsten is as dense as gold but has a much higher melting point. Tungsten is our material of choice to balance our payloads. The high melting point helps for vehicles heating up due to high speeds.
The volume of a sphere is 4/3*PI*r^3 not correcting for the volume the wire hook occupies. I do not know the diameters of the jig heads made with Do-It molds so I cannot calculate the loss of weight when using less dense metals right now. I'll let someone else do that.
Keith
2008 NWR Bash Crappie Champion
2010 NWR Bash Yellow Perch Champion
2010 Buggs Bash Smallest Crappie Award