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CurrentThreat Target . Target is a Malnourished Southwest

Asian or Middle Eastern male.

. Definition of "malnourished" is aBody Mass Index (BMI) < 20.Chakrabarty's" 5th PercentileIndian Male" BMI = 17.8

Taliban Terrorists

. Target "thickness" dimensions of the5th percentile from Chakrabortyare:-Chest: 186 mm (7.32 inch).-Waist: 191mm (7.52 inch).

. In contrast, the average Americansoldier is 10 inches "thick".

NOTE: Average threat anatomy since11 September 2001.

Source: Debkumar Chakrabarti (1997) IndianAnthropometric Dimensions. Paldi, Ahmedabad, India:National Institute of Design.

Failure of M855 to yaw orfragment within tissue resultsin relatively insignificantwounds, similar to thoseproduced by .22 long riflebullets. This can be caused by:

Reduced impact velocities whenthe range increases or when firedfrom short barrel weapons.

When the bullet passes throughonly minimal tissue, such as alimb or the chest of a thin,malnourished individual.

Manufacturing variations in thecomposition, thickness, andrelative weights of the jackets,penetrators, and cores, as well asthe types and position of thecannelures.

Some lots of M855 travelup to 7 inches before

beginning to yaw and willhave already exited the

body before yaw orfragmentation occurs.

Unfortunately, withdecreased wounding effects,

rapid incapacitation isunlikely and enemy soldiers

may continue to pose a threat

5.56 mm FMJ Bullet Terminal Performance Variations

VoI.3'104 f/'97 7 0'1It .

~.'.:.~.r~I . ..8'#..,

... . '".'" .\(al.1395 fir.

130 mIl

. , .

Vel 31-92 '" 111111-3155lit

.tA 913 m/....

9.6.1 m/''"!" . - ~."J ~-;, ~ .. ~ !'-~ ~..'. ....."'. ...'... ~.. fillVol1.139'I' Vel 2071 'I'

6S2 mli 633 mh

8 , &

Vol.3107 IIi9047 m/--

. ,J. .. .,J:~ ~

". .

Vol-1010 lit613 rn It

~

Vql-265<O .h8Dam I"

8,.:.~, ,

Vol.1996 '{I608 m"

I

Vel-'1620 1/..199 mI.

Vel.1S!t5 II'179 mh

V.I-2523 1/1"69 mfs

-I.- ~ II

.

. I,. I~&

... .V 01..1674 1/1

s~o mhVot.16'6 ft.

..93 m/..Vol.15S6 tf,.

~7~ mI.

I 8 I

50 CARTRIDGES

5.56 MM

77 GR. ~I~RRA MArCHKING PROJECrILE

LOT # BLH01J001-001

PRODUCED BY

BLACK HILLS AMMUNITION

M16/M4 & M855 vs. MK 12 SPR & Mk 262 (AA53)(NSWC Crane Data)

100 200

M16A2 & M855 10-Round Shot Group Extreme Spread

300 400 500 550Meters

600 700 800

MK 12 SPR & AA53 10-Round Shot Group Extreme Spread

100 200 300 400 500 550Meters

600 700 800

77 gr aTM Allows Head Shot at 600m & Body Shot at 800m on a Clear Calm Day

.

.

~,.

-~....

.

.

.

.

.-'.

.

.

10.5" @ 2439 f/s, pen = 17.9"

..tip

12"

core

., ..base tip

I

9 mm R2LP offers terminalperformance similar to M882

~.

G\ ]

..,...,'J

'"fii(';;'Ii':""1.1

IiU1J,," r"II

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i!"-...It~

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4.c: - :... ;,r

"r~

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--

7.5"

If intermediate barriers must be defeated,none of the current JAG approved

5.56 mm ammunition, except 52 gr M995AP, offers acceptable performance.

Be sure to 'Hatch your ammo storageconditions" Ternperatures above 150 deg F

vvill degrade the povvder and causepressure spikes. }Iint: Think locked metal

conex containers in the mid-easto

Mk262 (AA 53)77 gr SMK OTM

at 2735 tis

Horn 75 gr.OTM

~offers virtually

identicalterminal

performance toMk262 77 gr

OTM

Unlike M193 &M855, the 75/77 gr

OTM loads offeracceptableterminal

performance out ofshort barrel

carbines like theMK18 & HK416