bo 3500.1n - Marine Corps Base Camp Pendleton

BO 3500.1N
25 Mar 08
6020. INFANTRY WEAPONS
1. Small Arms
a. Safety precautions will be strictly adhered to as prescribed by
appropriate field manuals, directives in the MCO 3570 series, and this Order.
b. Overhead or flanking-fire is authorized only as prescribed by directives
in the MCO 3570 series, appropriate firing tables and field manuals,
and approved by the RCO.
2. Machine Guns
a. Safety precautions shall be strictly adhered to as prescribed by
appropriate field and technical manuals, directives in the MCO 3570 series,
and this Order. All personnel are required to wear helmets, flak jackets and
hearing protection at all times during firing.
b. Machine guns shall remain in Condition 4 while in a cold status.
c. After machine guns are fired, the RSO shall ensure all weapons are
clear, and in a Condition 4 status.
d. The RSO shall ensure proper settings of required headspace and timing
on all guns prior to firing.
e. No one is allowed forward of any gun emplacement, for any purpose,
until authorized by the RSO. This does not apply to tactical exercises
involving overhead or flanking-fire.
f. Machine guns may be fired over unprotected individuals in firing
exercises, provided the provisions of directives in the MCO 3570 series,
appropriate firing tables, and field manuals are followed and approved by
the RCO.
3. Mortars (60mm and 81mm). Refer to Appendix D of this Order and approved
SDZs and Data Cards for mortar training requirements.
4. Rockets and Missiles. Safety precautions shall be strictly adhered to as
prescribed in appropriate field and training manuals, directives in the MCO
3570 series, and this Order. All ground personnel engaged in the firing of
rockets and missiles are required to wear helmets, flak jackets, and hearing
protection at all times during firing.
5. Grenades. Grenade encompasses all types of grenades, to include the
40mm grenade family, rifle grenades and hand grenades. Refer to FM 23-30,
Grenades and Pyrotechnic Signals, [reference (i)] and the most current
edition of directives in the MCO 3570 series [references (a) and (b)].
a. Fragmentation, offensive, and WP hand grenade duds shall be rendered
safe or destroyed by qualified EOD personnel. If a dud occurs, the RSO shall
order, “cease fire,” record the time the dud occurred, keep all troops under
cover, and notify LONGRIFLE, who will contact EOD for assistance. EOD will
observe a minimum 30-minute waiting period. After the waiting period, the
EOD Team will clear the dud and inform the RSO when the range is clear.
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