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temperature /speed chart ?

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Unread 08-08-2002, 10:36 AM
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Re: temperature /speed chart ?

Howdy DC,

Well I unfortunatly do have major altitude and temp. changes thoughout my hunting day. I could start at 5000 at 55 degrees and get to 10,000 and have 30 degrees easily ...

I'd be curious what the name of the handheld is that I could load a ballistics software program into... hmmm thinking again....
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Unread 08-08-2002, 11:07 PM
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Join Date: May 2001
Location: Pennsylvania
Posts: 1,757
Re: temperature /speed chart ?


Heres the variance of the 30 degree to 55 degree change of temperature along with the 5000 feet elevation up to 10000 feet change.

At 50 degrees and 5000 feet elevation at 1000 yards, I would need 16.1 MOA in my 338/416 Rigby

At 30 Degrees and 10,000 feet elevation at 1000 yards, I would need 15.4 MOA to cover the same distance.

We are talking about 7/10 MOA or 7" at 1000 yards.

Not really a MAJOR concern if your spotting for someone or have a spotter for you.

This would change though if someone were shooting a bullet of low BC as compared to what mine does.

As for the ballsitics program.
I was refering to the small computers that are available and not to a tiny little hand held. Some of the very small laps that you can hardly use the small keys would work for you.

Darryl Cassel
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Unread 08-08-2002, 11:23 PM
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Join Date: Jun 2001
Location: Palmer, Alaska
Posts: 2,539
Re: temperature /speed chart ?

The Horus Vision has a Handspring Visor and a chip loaded with a program capable of what we need, including angle changes, wind, BP, Temp etc. $240.00 for everything. I talked to Dick B. over there and this is the model we need for use in the field he says. Used with any other palm device, the program is lost when the batteries go dead. It then needs to be reloaded while connected to a laptop or desktop PC containing it too. This is not necessary with the Handspring Visor unit, it contains the info on the chip so new batteries just need to be installed then turned back on.

I'll be getting one in a couple weeks and will let everyone know how it works out.


HandSpring Visor With Module and program
Brent Moffitt
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Unread 08-09-2002, 06:01 AM
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Re: temperature /speed chart ?

I will be awaiting your results anxiously!!!!!
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Unread 08-09-2002, 06:55 AM
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Join Date: Feb 2002
Location: Jackson MI
Posts: 247
Re: temperature /speed chart ?

Has anyone checked out the Exbal calculator from Perry Systems? http://www.perry-systems.com/palm.htm

They say that they can accomodate the enviromental changes from sight-in at one location and climate to shooting at another. I ordered the PC version but they also have a PalmPilot version.

[ 08-09-2002: Message edited by: RBrowning ]
"When working with the public, there are two things you need to remember. - 1. The public is a bunch of ignorant morons. - 2. YOU and I are one of them!"
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Unread 08-09-2002, 07:52 PM
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Join Date: Sep 2001
Location: North, Texas
Posts: 613
Re: temperature /speed chart ?

Darryl what program are you running and where can we get one?
Courage,Spirit and Honor
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