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Long range first hit mathematical forumulas

 
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  #1  
Old 09-15-2005, 04:29 PM
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Join Date: Sep 2005
Location: Kalifornicated
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Long range first hit mathematical forumulas

When I taught marksmanship and ballistics at 1st. Marine Division Scout Sniper school, one of my main concerns was the students ability to predict where a bullet would impact on the first shot. Obviously a sniper does not want to have to shoot spotters in order to effectively engage a target.

I was wondering what are some of the formulas the hunters here use to help them predict the cold bore shot at an unknown distance, at elevation, in the wind, at an angle, etc.

What if you are at 1000 feet more elevation than what you sighted your gun in at? and you are shooting up hill at 12 degrees? there is a 5 mph wind from 10 to 4, etc. You laz the target at 945, you have dope for 900 and 1000, but that was on level ground at 1000 feet les elevation, etc.???? What do you do. Or do most of the hunters here make an educated guess and hope his spotters sees where he hits?

I will jump in with some of my experiences if the thread takes off.

John
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  #2  
Old 09-15-2005, 04:56 PM
 
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Re: Long range first hit mathematical forumulas

John,

Now this could be some good stuff

ok me personally.. A-trag program and load data sheets
assisted by the COS angle indicator X distance ( for up hill down hill)

I personally don't have a formula for 1000-10,000 ft elevation changes... seeing as I live out west and I know what my rifles do at elevation and when I go back east to hunt shots are all under 200 yards...
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  #3  
Old 09-15-2005, 05:22 PM
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Join Date: Dec 2004
Location: El Reno, OK
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Re: Long range first hit mathematical forumulas

My method doesn't require much skill or know how. I just punch the numbers into exbal on my palm and dial the scope!!

I have no doubt that I can hit a man sized target on the first shot out to 1000 yds w/this program.
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  #4  
Old 09-15-2005, 05:46 PM
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Join Date: Jun 2005
Location: Yakima, Washington
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Re: Long range first hit mathematical forumulas

Marine sniper:

Pretty much like the others. Exbal software running on a Palm in conjunction with a Kestrel 3500 meter for all of the weather type stuff, ACI for any angles and a Swarovski range finder.

Range it, check the weather related data, read wind conditions where possible, check the angles, input all data into Exbal and my brain, dial scope, pull trigger.

Itís actually faster than it sounds because a lot of the data gets put in as soon as I get out of the truck.
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  #5  
Old 09-15-2005, 08:05 PM
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Re: Long range first hit mathematical forumulas

Calll in Artillery.

Just kidding.
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  #6  
Old 09-16-2005, 03:09 PM
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Join Date: Feb 2005
Location: Nevada
Posts: 2,782
Re: Long range first hit mathematical forumulas

I do the same as Ric Horst, Exbal saves the original sighting in information, including temp.,Bar. Pre.,Altitude,Humidity. When we move to a different place, higher Elevation and all the other stuff, we input that new info in Exbal and using the two sets of info Exbal will give us the numbers to dial for elevation and Windage. The slope angle as well as everything else will be included in the new set of settings for the turrets.
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Our Lord Jesus said that as it was in the days of Noah and
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  #7  
Old 09-16-2005, 03:12 PM
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Join Date: Feb 2005
Location: Nevada
Posts: 2,782
Re: Long range first hit mathematical forumulas

Marine Exniper,
I'm pretty sure you have knowledge and experiences that would help us all, so... come on!
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-----------------------------
HEBREWS 13:8
Jesus Christ the same yesterday, and to day, and for ever.

Our Lord Jesus said that as it was in the days of Noah and
also as it was in the days of Lot so it shall be in the days...
It's happening again!!! God sent to us His prophet, and His Word
to this generation and we once more are rejecting it as was prophesied!!!

---> As promised, God Sent His Prophet to us!
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