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Lethality of M16
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  Sagittarii

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Posted: July 25 2011 at 10:35pm | IP Logged Quote Sagittarii

Tamillo needs to understand "Lethality" means the recipient of said bullet is left on the ground "Wheels UP" playing dead ant not he's just having a bad day
M16 has had no lethality since they changed the Round after the initial trials in Vietnam.
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  weaponeer

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Posted: July 26 2011 at 4:44pm | IP Logged Quote weaponeer

I have yet to have any volunteers to test the Lethality of any of my AR's in 5.56mm
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  gundoctor

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Posted: July 26 2011 at 8:40pm | IP Logged Quote gundoctor

Nearly all of the probs are with bullet performance and/or short barrels.    FMJ's at modest (M4Barrel) velocities don't "tumble" or "yaw" or "fragment" and exit without depositing much of their energy in the body.    I have seen a few coyotes shot with FMJ's and observed the same thing. A little hair flew and that is about it unless the nervous system was hit. If chest shot they might go a hundred yards, or more.   Not much energy deposited equals not much damage. HOWEVER, put a hunting type bullet in there and the SOB will swap ends with them. No exit equals pretty spectactular performance. Now, balancing both penetration (i.e. armor, body armor) and soft tissue performance is not easy given today's laws on bullets, but getting either/or out of this round is easy.
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  midmichigun

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Posted: July 27 2011 at 7:11am | IP Logged Quote midmichigun

Gundoc,

Great points!

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  OldCoot

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Posted: April 21 2013 at 7:51pm | IP Logged Quote OldCoot

The 5.56 was a spinoff of the old Project Salvo debacle.  For a view of that one, you need to read SPIW-The Deadliest Weapon That Never Was....   It's an eye-opener.  When I was a kid, the guards at the radar base outside Ozona, Texas, carried M.1 Carbines....  I'd have to say that the 5.56 is a step up from that one....

Dr. Frank Chamberlain, who did the lethality and wound damage work during the period between WW1 and WW2, favored a .25 caliber round, and you can find your refs to him in Parker Ackley's  two volumes on cartridges.  That chapter is well worth reading.

As gundoctor notes, an expanding bullet increases performance considerably, and that holds true of the 7.62x39 as well as the 5.56.  It was even a help to the .30 Carbine....
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