The "Balle M" bullet has a full metal jacket made of cupro-nickel and a lead core.
The first bullet he created was named the Penetrator, with a hardened lead core with a heavy copper jacket.
The handle consists of bronze sheathing over a lead core.
The only thing holding the soft lead core together at these high spin rates is the thin copper-alloy jacket.
The fourth sliced his stick in two, splintering the wood and shearing through the lead core.
The opposite would be true for a fourrée with a lead core.
Bonding the lead core to the copper jacket to prevent separation and fragmentation.
There, the heavy lead core delivers its kinetic energy to the target.
The bearing is made of rubber with a lead core.
A solid copper bullet is a bullet that has no lead core or other elements than copper.