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OT: New gun sight design

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kfvo...@gmail.com

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Dec 15, 2009, 4:11:07 AM12/15/09
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Carla Fong

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Dec 15, 2009, 10:59:04 PM12/15/09
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kfvo...@gmail.com wrote:

> http://news.cnet.com/8301-17852_3-10415476-71.html?part=rss&subj=news&tag=2547-1_3-0-5
>
> Karl


Or, for normal pistol targeting distances, try one of these:

<http://www.crimsontrace.com/Home/Products/SmithWesson/tabid/199/Default.aspx>

Carla

There is a very good reason that there are so many mass shootings at
schools and other gun free zones. Those inclined to do such a thing
know that they can shoot people with impunity for quite awhile before
anyone with a gun shows up. This policy is foolish to the point of
lunacy. Do you really think anyone who has evil in mind will leave
their guns in the car? - JP Clark

Steve B

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Dec 16, 2009, 1:02:46 AM12/16/09
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"Carla Fong" <carla.xs...@verizon.net> wrote in message
news:q4CdnZusKcCUxrXW...@giganews.com...

I have been seeing these. They are plastic, so I wonder about the accuracy
after being subjected to temperature differentials. But then, most shooting
is at short range, and most shooting that involves adrenaline drives down
the hit % drastically.

Steve


TwoGuns

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Dec 16, 2009, 10:03:31 AM12/16/09
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On Dec 16, 12:02 am, "Steve B" <deserttra...@fishmail.net> wrote:
> "Carla Fong" <carla.xspamx.f...@verizon.net> wrote in message
>
> news:q4CdnZusKcCUxrXW...@giganews.com...
>
>
>
> > kfvorw...@gmail.com wrote:
>
> >>http://news.cnet.com/8301-17852_3-10415476-71.html?part=rss&subj=news...

>
> >> Karl
>
> > Or, for normal pistol targeting distances, try one of these:
>
> > <http://www.crimsontrace.com/Home/Products/SmithWesson/tabid/199/Defau...>

>
> > Carla
>
> I have been seeing these.  They are plastic, so I wonder about the accuracy
> after being subjected to temperature differentials.  But then, most shooting
> is at short range, and most shooting that involves adrenaline drives down
> the hit % drastically.
>
> Steve

I bought a Rd Laser pointer at the local WalMart for $2.47 plus tax.
I had some scrap Aluminum That I used to make a holding frame and an
on/off switch for the laser. I had several small but extremely strong
magnets I used to attach this to the top frame rail on my S7W Model 22
in .22 Long Rifle. It works great at the indoor range but in daylight
it is too dim to see. The first time I used it at the indoor range
another shooter saw it and offered me $75 for it. I sold it. He was
shooting a Colt Gold Cup and the recoil was too much for the magnets
with the .45ACP rounds. But when he put the .22 Barrel on it the laser
worked great.

I have thought about using a Green Laser but they are pretty
expensive. However even if I have to pay $100 for a Green laser I
would have $150.00 left versus the store bought stuff. If any of you
have used a Green Laser how did they work in full daylight?

DL

Louis Ohland

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Dec 16, 2009, 11:13:18 AM12/16/09
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TwoGuns wrote:

> If any of you have used a Green Laser how did they work in full daylight?

Farther range, more apparent (eye is more sensitive to green).

If you want to check out the wild side, look at
http://www.wickedlasers.com (if they are still around). Oh, my God, they
have 500mW lasers!. Awesome. You can see a 75mW beam all the way at
night, illuminate clouds. Do NOT play sky tag with them. Way overpowered
for use on a projector screen (too much backscatter).

Larry Jaques

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Dec 16, 2009, 12:36:40 PM12/16/09
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On Tue, 15 Dec 2009 19:59:04 -0800, the infamous Carla Fong
<carla.xs...@verizon.net> scrawled the following:

>
>kfvo...@gmail.com wrote:
>
>> http://news.cnet.com/8301-17852_3-10415476-71.html?part=rss&subj=news&tag=2547-1_3-0-5

I'm unimpressed so far. Having watched the video, I don't see a real
difference between a standard slotted/notched sight and his truncated
triangle. Do you? How is that easier, consciously or subconsciously?
<shrug>


>Or, for normal pistol targeting distances, try one of these:
>
><http://www.crimsontrace.com/Home/Products/SmithWesson/tabid/199/Default.aspx>
>

Carla, how does Crimson Trace get nearly the price of a weapon for a
pair of grips with a $3 laser in 'em? $100 I can see, but $329? Gimme
a break. That said, I'd love to have a set.


>There is a very good reason that there are so many mass shootings at
>schools and other gun free zones. Those inclined to do such a thing
>know that they can shoot people with impunity for quite awhile before
>anyone with a gun shows up. This policy is foolish to the point of
>lunacy. Do you really think anyone who has evil in mind will leave
>their guns in the car? - JP Clark

Excellent thoughts and great sig.

--
Every day above ground is a Good Day(tm).
-----------

David R.Birch

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Dec 16, 2009, 9:08:29 PM12/16/09
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500mW?

At work I program 4kW LASERS. Can't figure out how to mount one on a
pistol, though.

David

Spehro Pefhany

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Dec 16, 2009, 9:51:12 PM12/16/09
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On Wed, 16 Dec 2009 07:03:31 -0800 (PST), the renowned TwoGuns
<R-D-L...@neb.rr.com> wrote:


>
> I have thought about using a Green Laser but they are pretty
>expensive. However even if I have to pay $100 for a Green laser I
>would have $150.00 left versus the store bought stuff. If any of you
>have used a Green Laser how did they work in full daylight?
>
>DL

The "200mW" one I have is *very* sensitive to temperature- cool it
down a bit and it pretty much goes dark (warning: the IR pump laser
for the DPSS crystal might still be putting spitting out invisible
light-- maybe they put a filter in there to block the IR, maybe not).


Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
sp...@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com

Michael A. Terrell

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Dec 16, 2009, 10:26:55 PM12/16/09
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How about a remote controlled turret?


--
Offworld checks no longer accepted!

Stuart Wheaton

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Dec 17, 2009, 8:59:30 AM12/17/09
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Utterly useless in his application, Both NRA conventional pistol and
International Pistol forbid any sight that projects light onto the
target. International Pistol forbids anything except Iron sights.

For international Rapid fire pistol, easy target acquisition is key.

"Rapid Fire Pistol:
Rapid Fire Pistol includes firing once each at five adjacent targets in
timed stages of eight, six, and four seconds. Competitors must begin
each rapid fire string with the pistol pointed down at a 45 degree
angle, and when time begins they must raise the pistol and engage the
targets before time runs out! Pistols for this event are identical to
those used for Sport Pistol and Standard Pistol."

Stuart

Stuart Wheaton

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Dec 17, 2009, 9:02:18 AM12/17/09
to

If you have a 4KW laser, do you really need a pistol? Aim for the eyes...

Lloyd E. Sponenburgh

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Dec 17, 2009, 9:14:31 AM12/17/09
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Stuart Wheaton <sdwh...@fuse.net> fired this volley in
news:acfc1$4b2a39e9$d06602ac$31...@FUSE.NET:

> If you have a 4KW laser, do you really need a pistol? Aim for the
> eyes...

Hell... aim for _anything_ you want to vaporize!

Make it a CO2 laser, and the perp won't see anything but his own smoke.

LLoyd

David R.Birch

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Dec 17, 2009, 10:26:21 PM12/17/09
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Nah, it'll cut 1" of steel, but the LASER head is .020" above the plate.

David

Larry Jaques

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Dec 18, 2009, 3:15:11 PM12/18/09
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On Wed, 16 Dec 2009 20:08:29 -0600, the infamous "David R.Birch"
<dbi...@wi.rr.com> scrawled the following:

Ooh, I want one of those for the roof of my house. Bluejays, skunks,
raccoons, stray dogs, and other invasive bipedal species would be
history!

All I want for Christmas is a Vaporizing Laser for my roof! Hooyah!

--
This episode raises disturbing questions about scientific standards,
at least in highly political areas such as global warming. Still,
it's remarkable to see how quickly corrective information can now
spread. After years of ignored freedom-of-information requests and
stonewalling, all it took was disclosure to change the debate. Even
the most influential scientists must prove their case in the court
of public opinion�a court that, thanks to the Web, is one where
eventually all views get a hearing. --Gordon Crovitz, WSJ 12/9/09

David R.Birch

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Dec 18, 2009, 8:09:26 PM12/18/09
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Larry Jaques wrote:
> On Wed, 16 Dec 2009 20:08:29 -0600, the infamous "David R.Birch"
> <dbi...@wi.rr.com> scrawled the following:

>> At work I program 4kW LASERS. Can't figure out how to mount one on a

>> pistol, though.
>
> Ooh, I want one of those for the roof of my house. Bluejays, skunks,
> raccoons, stray dogs, and other invasive bipedal species would be
> history!
>
> All I want for Christmas is a Vaporizing Laser for my roof! Hooyah!

All you have to do is lure them within .020" of the LASER head.

David

cavelamb

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Dec 18, 2009, 8:56:09 PM12/18/09
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Just guessing, but I'd bet that thing will go through soft tissue
at quite a greater distance than what it takes to slice steel...

Hmm?

Larry Jaques

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Dec 18, 2009, 10:15:18 PM12/18/09
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On Fri, 18 Dec 2009 19:09:26 -0600, the infamous "David R.Birch"
<dbi...@wi.rr.com> scrawled the following:

>Larry Jaques wrote:
>> On Wed, 16 Dec 2009 20:08:29 -0600, the infamous "David R.Birch"
>> <dbi...@wi.rr.com> scrawled the following:
>
>>> At work I program 4kW LASERS. Can't figure out how to mount one on a
>>> pistol, though.
>>
>> Ooh, I want one of those for the roof of my house. Bluejays, skunks,
>> raccoons, stray dogs, and other invasive bipedal species would be
>> history!
>>
>> All I want for Christmas is a Vaporizing Laser for my roof! Hooyah!
>
>All you have to do is lure them within .020" of the LASER head.

Who ever heard of a proximity laser?!?

Doug White

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Dec 19, 2009, 9:15:24 AM12/19/09
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cavelamb <cave...@earthlink.net> wrote in
news:eYadncr3cLYgr7HW...@earthlink.com:

Not certain. After the first bit turns to carbon, it might form an
insulating layer. I suspect at those power levels the water vaporizes
fast enough to blow the charred bits away and keep the cut clear.

Just speculating...

Doug White

David R.Birch

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Dec 19, 2009, 12:27:45 PM12/19/09
to

Not really. The beam is focused for greatest intensity about halfway
through the material its cutting, it's not simply a narrow beam of
coherent light.

David

Paul Hovnanian P.E.

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Dec 19, 2009, 11:15:19 PM12/19/09
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Right. Its a question of optics. And losses in the optics. A parallel
beam that can cut steel will have a power density that can damage the
optics. But by spreading the beam out and bringing it to a focus only
where the cutting is to be done, the power density in the lenses is
lower.

Its also a safety feature. If the beam spreads out again behind the
focus point, it won't drill holes in the floor, walls, or whatever is
behind the work.

--
Paul Hovnanian mailto:Pa...@Hovnanian.com
------------------------------------------------------------------
All men are mortal. Socrates was mortal. Therefore, all men are
Socrates.
-- Woody Allen

Larry Jaques

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Dec 20, 2009, 1:37:40 AM12/20/09
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On Sat, 19 Dec 2009 14:15:24 GMT, the infamous Doug White
<gwh...@alum.mit.edu> scrawled the following:

OK, so if you loan one to me, I'll do the experimentation. Say when!
;)

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