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#15
10-09-2004, 01:46 AM
 Posts: n/a

Warren-- Copy the tables in S1's post on A.R. Tactical. The whole proces is there, including the correction table in 5 degree increments, and the equations.
http://artactical.com/eve/ubb.x?a=tp...05&m=859609536

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#16
10-09-2004, 07:23 AM
 Silver Member Join Date: Mar 2002 Location: Georgia Posts: 106

Antslayer, I`ve already copied those, but the shot angles are in 10 degree incriments up to 40 degrees.
Do you think splitting the difference would be close enough?
__________________
wb
#17
10-09-2004, 03:51 PM
 Posts: n/a

Warren-- This should fill in some of the blanks, I hope this helps.

Correction factors:

5 degrees = .0038

15 degrees = .0341

25 degrees = .0937

35 degrees = .1809

85 degrees = .9128

90 degrees = 1.0

P.S. The error correction factor for any angle is 1.0 - the angle's cosine.

Keep shooting with precision, and keep thinking with precision, you will shoot farther and straighter than most. I think CrowMag says it best.....

"If you think something is not possible move out of the way so the ones that are doing it can "

[ 10-09-2004: Message edited by: Antslayer ]
#18
10-09-2004, 08:41 PM
 Silver Member Join Date: Mar 2002 Location: Georgia Posts: 106

Antslayer, as you said, ocassionally Murphy`s law does get us all, but knowing how to do something and not knowing makes all the difference in the world. The more we can learn about what we`re doing, the more we can do with it and I just love that.
As already stated, I`m a newby to this longrange game in mountainous terrain and I very much appreciate all of the replies. I can now get started with more confidence.

thanks again, Warren
__________________
wb
#19
10-27-2004, 07:21 PM
 Junior Member Join Date: Jun 2004 Location: New Zealand Posts: 12

Hi Warren. This may be a bit late for your trip but others may find this useful. The data below can be used to find the horizontal distance to the target from the incline angle and slope (measured) distance.

0 deg (horiz.), multiply slope distance by 1
5 deg, multiply slope distance by 1
10 deg, multiply slope distance by 0.98
15 deg, multiply slope distance by 0.97
20 deg, multiply slope distance by 0.94
25 deg, multiply slope distance by 0.91
30 deg, multiply slope distance by 0.87
35 deg, multiply slope distance by 0.82
40 deg, multiply slope distance by 0.77
45 deg, multiply slope distance by 0.71
50 deg, multiply slope distance by 0.64
55 deg, multiply slope distance by 0.57
60 deg, multiply slope distance by 0.5

A useful instrument for measuring angles is a clinometer. Some of the Silva compasses have these built in, while Brunton makes one called the CM Clinomaster and Suunto also makes a good one called the PM-5/360 PC. The used Suunto ones sell on e-bay for about \$50.

Hope this helps. I was wondering when that engineering degree would come in handy.
#20
10-31-2004, 04:23 PM
 Silver Member Join Date: Mar 2002 Location: Georgia Posts: 106

Thanks Scol.
Yea it`s a little late for the trip, but it`ll be helpfull information in the future.

thanks a lot, Warren
__________________
wb
#21
11-02-2004, 09:29 AM
 Silver Member Join Date: Jun 2002 Location: Ireland Posts: 138

Warren

If you give me any ballistic info that you might have to hand, I can make a ballistic chart for you.

Do you have any idea what altitude you will be shooting at in the rockies.

I will email you sample copy.

The Silva/Bruton Horse Shoe Compass with Inclinometer is a nice piece of kit.

Rgds

700

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