AMMUNITION AND GUNNERY
Despite the present-day emphasis on missiles, guns
continue to be important offensive weapons.
As a Seaman, you may be required to man gun
stations or serve as a member of a magazine crew, so it
is necessary that you have a general knowledge of the
ammunition and guns in service.
It is not our intent, nor is it necessary, to discuss all
the different types of ammunition and guns used in the
Navy today. This chapter does, however, contain much
information on guns, ammunition, and gunnery in
general; information that should be very helpful to you
in meeting your early shipboard assignments.
Excluding small arms, Naval guns are classified
according to size. Within this classification, they are
grouped as major, intermediate, or minor calibers.
Major caliber guns range from 8 inches up to 16 inches.
Intermediate calibers are greater than 3 inches and less
than 8 inches. Minor caliber guns are 3 inches and
ammunition. Differentiate between the types of
ammunition used aboard naval ships. Define
and explain the different types of projectiles
and propelling charges used in the Navy.
Explain the use of the magazine and magazine
In a general sense, ammunition includes anything
that is intended to be thrown at the enemy or put in his
path to deter, injure, or kill personnel, or to destroy or
damage materials. The term ammunition is used in a
much narrower and more technical sense in this book.
Ammunition includes any projectile or explosive
weapon, as well as components or parts thereof, but not
guns or weapon launchers and their parts.
Service ammunition is ammunition lit for service
use and including all explosive and propellant
components. Inert ammunition (that is, lacking
explosive and propellant components) and partially
inert ammunition of several types are used for test,
training, and practice purposes. Dummy or drill
ammunition (completely inert) resembling service
ammunition in appearance, size, and weight, may
include functioning components that contain no
explosive or propellant. It is used for training and test
purposes. Cutaway ammunition (completely inert) has
a section cut away to show inner construction and
components; it is used for training and display purposes.
Plaster-loaded or sand-loaded ammunition lacks the
explosive burster charge but is otherwise not inert; it is
used for target practice and for testing of launchers,
mounts, or projectors.
As a member of a gun-loading crew, you will be
tasked with finding, identifying, and loading different
types of ammunition. Each round fired must be
identified and recorded in the ship's logs. Ammunition
is identified by stenciled information printed on the
round and by its color. Stenciled information consists
mainly of the Navy Ammunition Logistics Code
(NALC)/Department of Defense Identification Code
(DODIC) and lot number.
A standard nomenclature and numbering system has
been established by the Department of Defense (DOD).
This system is a four-digit, alphabetic/numeric code
which will be either a Department of Defense
identification code (DODIC) assigned by Defense
Logistics Services Center (DLSC) or a Navy
ammunition logistics code (NALC) assigned by Ship's
Parts Control Center (SPCC). Examples of
DODIC/NALC nomenclature are as follows:
5"/54 Illumination Projectile
6"/50 BL&P Projectile
12 GAUGE 00 BUCKSHOT
COLOR CODES, MARKINGS, AND
The system of identifying ammunition by the use of
color codes, marking, and lettering is intended to be a