Re: 9mm, coppers--was RE: PA availability

laserlight spake thusly upon matters weighty: 

> > 9mm ain't that bad. But, as far as I know, criminals can and do use
> 
>   I sell industrial plastics, including polycarbonate laminates
> ("bulletproof glass").  The factory sent us some samples of 1.250"
sheet,
> composed of 2 layers 0.125 thick sandwiching two layers 0.500"
thick--and
> the samples had been tested, just to help make the point.  The 9mm Hi
Power
> slug penetrated 3 layers (ie 1.125") and dimpled the last layer.  The
.45
> cal only penetrated the first (.125") layer, whereupon it fragmented.
>   The moral of the story, of course, is "don't get shot."
 
This penetration is one of the reasons police have to be very careful 
in in-building scenarios. If they overpenetrate, they can kill 
civilians. And overpenetration on a fleshy target doesn't give KE 
transfer or tissue damage to the extent that a 
fragmenting/mushrooming round that stops does. 

Tom.  
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Thomas Barclay		     
Voice: (613) 831-2018 x 4009
Fax: (613) 831-8255

 "C makes it easy to shoot yourself in the foot.  C++ makes
 it harder, but when you do, it blows away your whole leg."
 -Bjarne Stroustrup
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