Weapons Flashcards
8 cycles of function
Feed Chamber Lock Fire Unlock Extract Eject Cock
4 fundamentals of marksmanship
Steady body position
Sight picture/alignment
Breathing
Trigger squeeze
Classes of fire
Respect to the ground Grazing fire Plunging fire Respect to the target Frontal fire Flanking fire Oblique fire Enfilade fire Defilade Respect to the gun Fixed Traverse Search Traverse and search Swing traverse Free
M67 frag grenade definition
Projects high-velocity fragments in a uniform distribution pattern to produce casualties.
Kill radius: 5 m
Casualty: 15 m
Frag: 230 m
Fuse: 4-5.5 sec
240B FM
FM 23-68
240B weight
27.6lb
Tripod 8 lb
Spare barrel 6.6 lb
240B Length
49 in
240B muzzle velocity and pressure
2800 fps
56000 psi
240B Rates of Fire
Sustain: 100 rpm (6-9 burst every 4-5 sec)
Rapid: 200 rpm (6-9 burst every 2-3 sec barrel change 2 min)
Cyclic: 650-950 rpm barrel change every minute
240B max effective range
Point 600m/800m
Area 800m/1100m
Max 3725m
240B definition
A belt fed, air cooled, gas operated, crew served, fully automatic machine gun, that fires from the open bolt position.
240B ammunition
Ball Tracer Blank Ap Ap incendiary Dummy
M249 FM
FM 23-14
M249 definition
A lightweight, belt fed, gas operated, air cooled, fully automatic weapon that fires from the open bolt position.
M249 weight
17 lb
Barrel 2.5 lb
200 round drum 6.92 lb