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Reverse Engineering a ballistic program.

 
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  #8  
Old 07-15-2007, 10:57 AM
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Join Date: Aug 2003
Location: McKinney TX
Posts: 403
Britz,

I worked and talked with Brad many times over the years (maker of JBM online). He actually had a great ballistic program for PC ("On Target", if I remember correctly) back in the 90's, but went to an online version instead.

Brad's a great guy to talk to and work with.
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Jeff

Mathew 5:16

Distance is not an issue, but the wind will make it interesting!
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  #9  
Old 07-15-2007, 11:28 AM
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Join Date: Jun 2007
Location: Buenos Aires, ARGENTINA
Posts: 131
Jeff,

Nice review on your experience and very valuable especially for those who don't take the time to see what's going on when data doesn't match to actual field results.

However, some things I'l like to recall, since I posted them many times before in the past.

1) You cannot fudge numbers without paying the consequences. "Bending the curve" will not made up for an inaccurate ballistics engine. How many times will you have to repeat the process for any new load ?

2) Good input will make for good outputs...and the other way around.:confused:

3) The basic problem is not the use of G1/G5/G7 BCs. They are what we have at hand, what the manufacturers turn out. The problem lies in the ballistics predictive model most programs uses, especially at longer ranges when bullets go through the transonic range.

Not my idea to start a thread ( fight ?? ) on ballistics models, but fortunately enough we have new mathematical tools that yield very accurate results at extended ranges.
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regards, Gus

LoadBaseŠ Desktop & Mobile editions - the ballistics/reloading software solution
http://www.patagoniaballistics.com
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