CCI

CCI, bullet manufacturer

Cd

Cadmium, a metallic element sometimes present as an impurity in bullet lead

CIVL

Compositionally Indistinguishable Volume of Lead

Compositional group

A set of bullets determined to be compositionally similar via use of the FBI’s “chaining” technique

COV

Coefficient of Variation

CS

Crime Scene (bullet)

Cu

Copper, a metallic element used in jacketing high velocity ammunition and sometimes present as an impurity in bullet lead


Extruder

The machine that forces lead from a billet through an orifice or die to form a wire (much like squeezing toothpaste from a tube)


FBI

Federal Bureau of Investigation

FED

Federal, bullet manufacturer


Hog

A one ton casting of lead


ICP-MS

Inductively Coupled Plasma-Mass Spectrometry

ICP-OES

Inductively Coupled Plasma-Optical Emission Spectroscopy

Ingot

A 65–125 lb casting of lead; more generally, a casting that has solidified after having been poured from a vessel in the form of molten metal


Jacket

A metal external shell, often copper, surrounding the lead core of a bullet, frequently used for high velocity ammunition


LA

Laser Ablation


MC-ICP-MS

Multi-Collector-Inductively Coupled Plasma-Mass Spectrometry

Melt

A quantity of molten lead

Mold

The container into which molten metal is poured to allow it to solidify


NAA

Neutron Activation Analysis


Pb

Lead, a metallic element used to form bullets

PCA

Principal Components Analysis

Pig

A 65–125 lb. casting of lead

Pot

A vessel within which lead is melted

Pour

The action of transferring a molten metal from a vessel into an ingot mold, in which it will solidify

Primary lead smelter

A facility that transforms lead-bearing ore, normally a sulfide, into nearly pure lead by the steps of sintering, reduction, and refining

PS

Probable Suspect (bullet)



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