Frangibles?

[muck]

I'm a total n00b when it comes to new types of ammunition so I'd like to learn more about frangibles. Recently I read something about their spreading usage within LEO specialized units, some German SWAT teams for example have started to use frangibles in 9x19mm for their MP5s and secondary weapons.
I understand they consist of compressed metal dust or similar material and are designed to disintegrate upon impact, but I wonder how they'd perform in scenarios where a hardened surface like a pane of glass needs to be penetrated to hit someone beyond it? How do they end like if they hit a protective vest or a bone in the victim's body?
And do they already produce frangibles for typical long barrel calibers?

I just got curious about this. I'm sure that many of you will know.

[Policía Loco]

We have some of these in our inventory.
Not really glued and pressed but they kinda work on the same principle.
Be sure to watch the demo videos.

http://polyshok.com/

[StukaJr]

In lamen's and unscientific terms:

Frangible round is designed to fragment upon impact and its wounding mechanism is designed by its particles expending its kinetic energy in the direction of the original projectile - given path of less resistance (like open air or standoff between the barriers) and the energy will expand into multiple directions, thus losing its directional force and diluting the energy. Frangible rounds are not known for deep penetration when compared to standard rounds in the similar caliber, as they expend their energy all at once - they produce wide and shallow penetrations.

There is no way around this - if penetration of multiple barriers is desired, a different round must be used or barreir destroyed prior. If frangible round defeats body armor, it's possible there will be energy remaining to cause a wound.

I've shot frangible .223 out of 16" barrel and have even seen 30-06 shot at local indoor range.

There are a number of sites and publications primarily dedicated to studying bullet performance - I'd suggest Tactical Forums or Evan Marshall's Stopping Power (web or Print)


We have some of these in our inventory.
Not really glued and pressed but they kinda work on the same principle.
Be sure to watch the demo videos.

http://polyshok.com/

Those rounds aren't frangible - even if they do look interesting p-)

[muck]

Thanks for the information, gentlemen.

[Policía Loco]

Those rounds aren't frangible - even if they do look interesting p-)


Yeh, I know, but they are along the same lines.

[Seraphim]

I thought frangible was used for livefire in indoor training environments to reduce risks of ricochet.

A lot of manufacturers offer products like these.

http://www.hornadyle.com/faq/

[SilentType]

Yeah, they're excellent for training when you want to use steel targets. A lot of steel targets have warnings that you can't shoot them at close distances for the obvious reasons of richochet so the frangible gives you the ability to not have to worry about that to as great of an extent.

http://www.youtube.com/watch?v=tK2JL9hPVRM&feature=channel_page

Cool, but not cheap at all.