A poly-coated cast LEAD bullet can be propelled about as fast as

a jacketed one... Want the bullet a bit harder? Simply add some

tin to the pot.. Want the bullet LOTS harder?? Cast them from ZINC.

You just need a bit more heat.. A solid zinc bullet is hard enough

to penetrate most any animal stem to stern.. Where can l get zinc

for casting? Same place lead is found.. Wheel Weights