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long range shooting

 
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  #1  
Old 01-13-2003, 08:09 AM
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Join Date: Aug 2002
Location: texas
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long range shooting

got a quick question about shooting at different long range targets, do you all use a ballastic software to calculate the bullet drop at various distances and how would you go about using it in the field? like do you write it down on a paper and stick to the side of the stock or what? i see most long range scopes are calloberated for 100 yard increments, what if your target is at 532 yards, how do you compensate for the 32 yards? i hope my question is clear

thanks in advance
sambo
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  #2  
Old 01-13-2003, 09:03 AM
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Re: long range shooting

Sambo,the ballistic program I use is the JBM program.And I run it in 50 yard inc's. I start this one at 550 yard's.The differance between 550 and 600 yard's is about 1 MOA...So 500 to 532 yard's would be around .5 Moa.I shoot my gun's enough that a difference of 25 or 30 yard's is a add or take off a few click's to be where I need..Hope this helped some.....

[ 01-13-2003: Message edited by: Boyd Heaton ]
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  #3  
Old 01-13-2003, 09:04 AM
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Re: long range shooting

I use a drop chart try this site http://internet.cybermesa.com/~jbm/b...traj/traj.html make a chart from JBM and print it out so you can take it in the field. I would round the 532 yards to 520 or 540. I make my chart in 20 yard increments.
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Old 01-13-2003, 02:47 PM
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Join Date: Aug 2002
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Re: long range shooting

Thanks guys for the info, that's excactly what i'm looking for. i like that site a lot. is the sight height around 1.5 in most cases? or is it more for the 50 objective lense scope?
sambo

[ 01-13-2003: Message edited by: sambo ]
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  #5  
Old 01-13-2003, 09:02 PM
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Location: The rifle range, or archery range or behind the computer in Alaska
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Re: long range shooting

Sambo,

I print sheets of ballistics that have been calculated in 1000 feet ASL increments and 10 degree F conditions. For example: If I know I am going to be hunting between 3000 and 6000 feet at 30-70 degrees I print ballistics in 25 yard increments at 3000' at 30,40,50,60,70 degrees. Then 4000 feet at 30,40,50,60,70 degrees and so on. I pack them up in a ziplock bag and I am good to go. There is also 10MPH wind in there as well. Then I print on the back of those ballistics the raw or real bullet drops (drops figured with the gun fired level with the earth.) with a seperate sheet of multipliers for angle shooting.
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Old 01-14-2003, 12:44 AM
 
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Re: long range shooting



[ 07-11-2003: Message edited by: S1 ]
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  #7  
Old 01-14-2003, 03:15 AM
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Re: long range shooting

S1, I agree completely.
The real world data you start to develope will help you fill in the blanks. If you have test data at 500 and 600 yards and trajectory is following a program you have close at these distances 532yds will be pretty easy to figure, say for instance the 500yd is 7.7moa and 600yd is 10.4moa and your following this real close. Now you go to the program and it says 520yds is 8.3moa and 540yds is 8.8moa, now there isn't much guesswork to find 532yd data. I would go with 8.5moa for a basis.
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