TM-9-2350-311-10

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; OPERATOR’S MANUAL

NOVEMBER 1994

  TM-9-2350-311-10 - Page 565 of 775

TM 9-2350-311-10
5-2 AUTHORIZED MUNITIONS — CONTINUED
5-2.3
Authorized Propelling Charges
Some propelling charges may have an MK2A4 primer packed inside the container. This primer is
not authorized for firing in M109A2/M109A3/M109A4 M185 or M109A5 M284 cannon assembly.
a. M3A1 Propelling Charge
The M3A1 propelling charge (1) is a green bag charge divided into a base and four increments for firing in charges 1
through 5. It has a flash reducer pad (2) assembled in front of the base charge with similar 1 ounce (28.30 g) pads
assembled in front of increments 4 and 5. The increment bags are tied together by cloth straps. A clean-burning igniter
charge in a red cloth bag is sewn to the rear of the base section.
b. M3 Propelling Charge
The M3 propelling charge is a green bag charge similar to the M3A1 propelling charge (1), except it is not assembled
with flash reducer pads and black powder is used in the igniter pad.
c. M4A2 Propelling Charge
The M4A2 propelling charge (3) is a white bag charge consisting of a base charge and four increments for firing in
charges 3 through 7. The increments are tied together by cloth straps. A clean-burning igniter charge in a red cloth bag
is sewn to the rear of the base section. It has a flash reducer pad (4) assembled in front of the base charge.
d. M4A1 Propelling Charge
The M4A1 propelling charge is identical to the M4A2 propelling charge (3), except that it does not contain a flash
reducer, and the base igniter contains black powder instead of a clean-burning igniter charge. The M2 flash reducer
may be used with this charge and is a separate item of issue (para 5-2.5).
5-37


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