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ethib
09-05-2012, 1:06 PM
The NRA put a new article out on handgun stopping power
http://www.americanrifleman.org/articles/handgun-stopping-power/

They did not do a very good job a analyzing any of the data so I thought people here could probably give some input.
Some specific questions
1. 10% gelatin is the approx for human tissue...but what about bone? They're talking about center mass shots, and center mass tends to have a lot of bones. What would the approx loss in penetration be for hitting or grazing ribs...sternum...
2. What's a good number for penetration? They even say you don't want over penetration so the expansion does more damage, but then leave you to decide what's good by looking at numbers.

Sam
09-05-2012, 1:22 PM
While this isn't completely on point, this does a good job of explaining what you need.

http://www.m4carbine.net/showthread.php?t=19887



Here is a thorough discussion of the topic.

http://www.firearmstactical.com/hwfe.htm

rafbo
09-05-2012, 1:34 PM
Here was an interesting post that was recently put up on the subject http://www.calguns.net/calgunforum/showthread.php?t=613134&highlight=ballistic

ethib
09-05-2012, 2:01 PM
While this isn't completely on point, this does a good job of explaining what you need.

http://www.m4carbine.net/showthread.php?t=19887



Here is a thorough discussion of the topic.

http://www.firearmstactical.com/hwfe.htm

Thank you. That helped with the NRA article. That link had http://www.firearmstactical.com/pdf/fbi-hwfe.pdf
which is a fbi academy doc which says from the side you need 10-12inches shooting through the side/arm to reach the heart, 7 inches from the front on a slender adult to reach major blood vessels in the ab cavity. It says 18inches is preferred and 12inches is required

ethib
09-05-2012, 2:03 PM
haha I didnt see the 2nd link, just the m4carbine link .