From: ygmir (ygmir@onemain.com)
Date: Mon Nov 14 2005 - 21:27:08 PST
good info, thanks.
I'm going to test several layers of conveyor belting hung with spaces
between, and, am doing some research into ballistic nylon in several layers,
hung the same way.
I'm finding that allowing the curtain to swing freely when hit, dissipates
much energy, and, a tough fabric sandwiched between something like rubber
can do a lot to slow a projectile.
I'm hoping the belting works, since, it's usually free or cheap............
If anyone has more info, I'd appreciate it.
I'll post results when I get some good data.
Thanks,
Henry
----- Original Message -----
From: "Herb Leong" <herb@tomobiki.urusei.net>
To: "ygmir" <ygmir@onemain.com>
Sent: Monday, November 14, 2005 8:27 PM
Subject: Re: [MV] ballistic curtains
> ygmir wrote:
> #
> # HI all,
> # It's project time.......
> # Does any one have info, know where to get, or, how to make, "ballistic
> # curtains"?
> # I'd like to be able to stop .308 or so.........
> # I'm making a place, at my mountain property, to store my jeep, etc, and,
> # would like to protect them from the 'errant' hunting round, and, maybe
> # vandals........(hard as it is to believe, some people will shoot at a
> # structure, just to see what happens....)
> # I understand a hanging curtain arrangement is good, because, it absorbs
> a
> # lot of the energy by moving the free hanging curtain on impact......
> # Any way,
> # If anyone can help, I'd appreciate it.
> # Thanks,
> # Henry
>
> Hi,
>
> The Diamondback curtains that were suggested are *way* overpriced for
> using on a house. At $2,500 for a 4'x4' sheet, you would have to be
> filthy rich or you live in a dog house. Not to mention that it is not
> rated for rifle rounds.
>
> Most soft armor needs a hard armor insert to make it rifle resistant
> for one shot. There is a newer product on the market called spectra which
> is supposed to be better, but it's also pretty expensive.
>
> For more permament setups, there is a sheetrock-like material that has
> to be backed with a metal grate that I was told would stop up to .50bmg,
> but again it's rather expensive. I was not given any details about it,
> but I looked at a sample and, honestly, I thought it was only good for
> spall or bomb fragments, but I never saw a NIJ rating for the stuff, nor
> did I test any of it so I don't know for sure...
>
> I think that the best material in terms of price is poured concrete,
> dirt, and tactical location.
>
> A foot of dirt sandwitched between a couple of concrete walls would
> stop most small arms. If you build so that your home has two or three
> walls set near or into a hillside, that hill will stop most anything that
> a human can carry. If you build so that you are also high up on the hill,
> that would keep you from getting direct shots into your roof unless you
> are in a area where armed aircraft do straffing runs. :-) Falling bullets,
> while still dangerous, are more easily stopped by a regular roof after
> the air has had time to work on slowing 'em down for you. Now the most
> important part is to set a distance from your house to anything that
> would launch a bullet at you. So get and keep up a (solar powered
> electric) fence with posted signs.
>
> /herb
>
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