posted on Jan, 1 2006 @ 04:11 AM
The 5.56mm at decent velocitys tend to break up on penetration. When they are a bit slower they tend to tumble after impact. This is less noticable on
the SS109, as it is a bit heavier and less prone to tumble.
An interesting point to note is that short barrels like those on the CAR15/M4 don't allow the round to break up properly after more than about 100m,
while a decent barrel like the M16 or SA80 will still allow this at up to about 300m. This goes a long way to explaining the poor combat reports
regarding stopping power from US forces in Somalia/Afgan/Iraq, as many of the units fielding these reports use M4s. You tend not to hear these reports
from British troops as we don't use any weapons with short barrels. Time will tell when the SA80A2 Carbine comes into circulation. The FN Para Minimi
that we use has a 14 inch barrel, but there tend to be more hits on target with this weapon, thereby increasing lethality.