C 10, TM 9-2350-230-12
Section 7-2. CONVENTIONAL AMMUNITION FOR
152MM GUN-LAUNCHER M81 SERIES
identification. Color codes used are given in table 7-3.
7-2.
General
7-5.
Authorized Rounds
a. Conventional ammunition for 152MM Gun-
Only authorized cartridges will be used in this
Launcher M81/M81E1 is classified as fixed ammunition.
weapon. Specific information, Federal Stock Numbers
The complete round is issued with projectile assembled
and other pertinent data are listed in SC 1305/30-IL and
to the cartridge case. The propelling charge is not
SC 1340/98-IL.
adjustable.
7-6.
Preparation for Loading
b. A complete round of ammunition consists of all
a. General. Cartridges for 152MM Gun-Launcher
components required to fire the weapon once. These
M81 series are fixed rounds and require no preparation
components consist of a primed cartridge case
for firing except unpacking and inspection. Rounds are
containing the propelling charge and a projectile, fuzed
marked for identification as shown in figure 7-3.1 through
or unfuzed depending on type. The complete round is
loaded into the weapon as a unit. Dummy round, a one
b. Firing Temperature Limits. Observe the following
piece inert round made of cast aluminum, is used for
safe temperature limits:
training in loading and handling.
For all models except HE-T cartridge XM657E2:
c. Authorized cartridges, round types and fuze
types are given in table 7-3, and illustrated in figures 7-
Upper limit ..................................................... +1250F
3.1 through 7-3.4.
Lower limit .......................................................... -40 F
For HE-T cartridge XM657E2 only:
7-3.
Firing Tables
Upper limit ............................................ +1250F
Lower limit ................................................ t40 F
Refer to FT 152-A-1.
7-4.
Identification
moderate temperatures gives greater accuracy of fire.
Successive firing of cartridges from the same lot
a. General. Ammunition, ammunition components,
minimizes dispersion at the target.
and packing containers are identified by painting and
marking. Complete rounds are identified by color
c. Special Instructions for Cartridge Canister, M625
scheme and marking.
Series.
(1) Model. A model designation, assigned to
WARNING: Before firing, assure that all personnel
identify a particular design, is included in
are clear of dispersion area proper and are under cover
the marking. Model designations consist of
in immediate vicinity.
M or XM and an arabic numeral.
Modifications are indicated by adding A or
Canister cartridge M625 series is a flechette-loaded,
E and an arabic numeral. M1A1, for
beehive type which functions immediately in front of the
example, indicates the first modification of
weapon.
The flechettes are dispersed in a conical
an item for which the original designation
pattern (fig. 7-3.5). This presents no hazard to
was M1. XM 409E5, as another example
personnel except in the cone area and immediate
indicates the fifth modification of an item
vicinity.
originally designated XM409.
(2) Ammunition
lot
number.
When
NOTE. Before firing canister cartridge, adjust
ammunition
is
manufactured,
an
telescope reticle for a range of 1400 meters. This
ammunition lot number, consisting of the
assures desired gun elevation of 17 mils.
manufacturer's symbol and a number, is
assigned.
b. Painting. Artillery projectiles are painted to
prevent rust and to provide a ready means of
7-4.1
