PS Magazine - TB 43-PS-732

PS, The Preventative Maintenance Monthly

ISSUE 732

NOVEMBER 2013
PS Magazine - TB 43-PS-732 - Page 20 of 33
37
PS 732
NOV 13
PS 732
M16/M16A1
± These±older±weapons±are±designed±to±shoot±the±M193±(ball)±
and± M196± (tracer)± cartridge.± Because± the± M16/M16A1± has± a±
one±turn±in±12±inches±twist,±it±can’t±accurately±shoot±the±heavier±
bullets±used±in±the±M16A2/M4-series.±You±can±ID±M193±cartridges±
by±their±unpainted±bullet±tips±and±M196s±by±their±red±tips.
M16A2/M16A4, M4/M4A1
± They±have±a±one±turn±in±seven±inch±rifling±twist±and±work±best±
with±the±M855±(ball)±and±M856±(tracer)±cartridges.±If±you±shoot±
M193± or± M196± cartridges,± your± effective± range± is± reduced± 16±
percent.±M855±cartridges±have±a±green±tip±and±M856s±have±an±
orange±tip.±
M249
Protect Ammo
Here is the
ammo authorized
for the
M16-series rifle,
M4/M4A1 carbine
and M249
machine gun…
The M249 also works
best
with the M855 and
M856 cartridges.
if you shoot
M193 and M196
cartridges,
the M249’s
effective range
is
reduced
from
1,000 meters
to 500.
M193±has±an±unpainted±tip
M196’s±is±red
M855±has±green±tip
M856’s±is±orange
TACOM maintenance advisory
message 05-038 authorizes
the use of British 5.56mm
rounds for training only
with the M16A2/A4 rifle, the
M4/M4A1 carbine and the M249
machine gun.
The British round leaves more
powder residue, which causes
the weapon to jam if it’s not
cleaned frequently.
British ammo is
stamped on its
base with either
L1A2 or L2A2.
if ammo is left lying in the hot
sun, its propellant burns
faster,
which creates
greater pressure
inside your weapon.
Too much pressure
can
damage
your weapon.
if at all possible,
keep ammo
shaded.
if ammo is
hot,
let it cool
before
firing.
I’m sorry, old chap,
but
I’m not supposed
to shoot british rounds
except for training.
quite
so!
I can
leave quite
a mess.
I’m glad they finally
realized how
important
it is to keep you out of
the HOt sun!
zounds!
When you’re
through training,
clean your
weapon and then
re-zero it with
U.S. ammo.
I’m gonna
look
great
when they
get ready
to fire me!
You’re
tOo hot
to fire!
732 36-37.indd
1-2
10/2/13
1:01 PM
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