Glossary of Terms and Abbreviations

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Ammunition Abbreviation
ACP
“Automatic Colt Pistol”
Definition
Antimony
A brittle metal with symbol Sb on the Periodic Table of Elements. Antimony is often mixed with Lead and/or Tin to create Hard Cast Bullets.
Definition
Action
The part of a firearm that is used for loading a fresh round, firing the cartridge, and unloading the spent case from the firearm.
Definition
Annealing
The process of annealing involves heating a part of a cartridge case to re-softened the brass. The annealing process is used when a case has been stretched and resized multiple times and becomes brittle, avoiding cracks, splits, or other physical malfunctions in the cartridge.

Component Characteristic
BTHP
“Boat Tail Hollow Point”
Definition
Brinell Scale
The Brinell Scale is a testing scale used to determine the hardness of a material and is often used to represent the relative hardness of a Hard Cast Bullet using a number scale followed by the abbreviations BHN or HB. The larger the number on the Brinell Scale, the harder the material.

Unit of Measure
COL
“Cartridge Overall Length”

Component Characteristic
DEWC
“Double Ended Wad Cutter”
Product Name or Type
DGX
“Dangerous Game Expanding (Hornady)”
Product Name or Type
DGS
“Dangerous Game Solid (Hornady)”

Component Characteristic
FMJ
“Full Metal Jacket”
Component Characteristic
FBRN
“Flat Base Round Nose”
Component Characteristic
FP
“Flat Point”
Product Name or Type
FTX
“Flex Tip Technology (Hornady)”

Product Name or Type
GMX
“Gilding Metal Expanding (Hornady)”

Component Characteristic
HP
“Hollow Point”
Component Characteristic
HBRN
“Hollow Base Round Nose”
Component Characteristic
HBRN-TP
“Hollow Base Round Nose – Thick Plate (Berry’s Manufacturing)”
Component Characteristic
HBFP-TP
“Hollow Base Flat Point – Thick Plate”
Component Characteristic
HBWC
“Hollow Base Wad Cutter”
Product Name or Type
HAP
“Hornady Action Pistol”

Component Characteristic
JHP
“Jacketed Hollow Point”

Component Characteristic
LRN
“Lead Round Nose”
Definition
Lead
A soft metal with symbol Pb on the Periodic Table of Elements. Lead is the main ingredient in creating Cast Bullets and can be mixed with other metallic elements such as Tin or Antimony to create Hard Cast Bullets with varying hardness, measured using the Brinell Scale.

Unit of Measure
OAL
“Overall Length”

Component Characteristic
RN
“Round Nose”
Manufacturer Name
RCBS
“Rock Chucker Bullet Swage”

Component Characteristic
SJHP
“Semi Jacketed Hollow Point”
Component Characteristic
SJ
“Semi Jacketed”
Component Characteristic
SP
“Soft Point”
Product Name or Type
SST
“Super Shock Tip (Hornady)”
Product Name or Type
SXP
“Super X Pump (Winchester)”

Component Characteristic
TMJ
“Total Metal Jacket”
Definition
Tin
A shiny metallic element with symbol Sn on the Periodic Table of Elements. Tin is often mixed with Lead and/or Antimony to Create Hard Cast Bullets.

Product Name or Type
PPK
“Polizeipistole Kriminalmodell -or- Police Pistol Detective Model (Walther)”
Component Characteristic
WC
“Wad Cutter”

Product Name or Type
XTP
“Extreme Terminal Performance (Hornady)”