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posted by martyb on Tuesday April 10 2018, @11:37PM   Printer-friendly
from the Who's-afraid-of-the-big-bad-bomb? dept.

Armor-Piercing Bullet Turned to Dust When Fired at Composite Metal Foam

Essentially a metal sponge consisting of hollow metal beads within solid metal, composite metal foam (CMF) generally retains some physical properties of its base materials. While its defining characteristic is ultra-high porosity, CMF boasts 5 to 6 times greater strength as well as over 7 times higher energy absorption than previously developed metal foams. Typically created by melting aluminum around hollow metal spheres, it is impressively 70% lighter than sheet metal and 80 times more energy absorbent than steel.

The foam is claimed to be non-toxic, resistant to radiation, fire and heat resistant.

http://www.breitbart.com/tech/2016/04/21/watch-armor-piercing-bullet-turned-to-dust-when-fired-at-composite-metal-foam/

Youtube video (13 seconds) https://www.youtube.com/watch?v=lWmFu-_54fI

Related video (2:30) demonstrates automotive and other applications https://www.youtube.com/watch?v=7uE_f9rXLlk

Slightly different coverage at https://newatlas.com/metal-foam-bullets/42731/

Another Youtube video, demonstrating an explosion - https://youtu.be/yMVEQh5Akcc


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  • (Score: 0) by Anonymous Coward on Wednesday April 11 2018, @08:05PM (1 child)

    by Anonymous Coward on Wednesday April 11 2018, @08:05PM (#665511)

    Tell us the truth behind your ammophobia. Was it a girl you loved? Did she come out as an ammosexual? Was it too much for you to accept? And then you found her fursuit! Love can be so cruel, alas.

  • (Score: 0) by Anonymous Coward on Thursday April 12 2018, @02:01AM

    by Anonymous Coward on Thursday April 12 2018, @02:01AM (#665701)

    Yeah, but the 30-06 is not really a WWII era round, the '06 refers to 1906, which is a few years before WWI. It is a change from the standard denomination of black powder cartridge rounds, which usually followed a caliber-grains of powder-grains of projective naming convention. Something like the .45-70 started out this way, the .45-70-500, also known as . 45-70 Government, which was developed at the U.S. Army's Springfield Armory for use in the Springfield Model 1873, which is known to collectors as the "trapdoor Springfield", a converted muzzleloader. Ah, for the days when an assault weapon was a breech-loading single shot! Of course, didn't work out so well for the US Calvary at Little Bighorn.

    What worries me is that so many ammosexuals seem to be very ignorant about guns, and just seem to "support" them to piss off people who are more sane and intelligent than they are, much the way they vote for Trump, as kind of a "fuck you!" to the world in revenge for them having been born so incapable of erudition.

    In any case, I find the Sharps .45-90, or even the .45-120-550 to be a better round, in the rather smallish .45 caliber. Normally, .54 is the smallest bore I will fire.