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#8
02-15-2005, 07:44 PM
 Platinum Member Join Date: Jun 2007 Posts: 1,515

Here is another web based ballistics calculator with some nice comparative graphics brought to our attention by member Johnny5.

NTInnovations
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GRAVITY. It's not just a good idea. It's the LAW!
#9
03-04-2005, 01:24 AM
 Junior Member Join Date: Mar 2005 Posts: 2

Hi.
Can anyone advise distance a .22lr will travel? Subsonic 290M/sec at muzzle
Thanks.
Ralph
#10
03-04-2005, 01:55 AM
 Platinum Member Join Date: Jun 2007 Posts: 1,515

2.5 miles.

Go to the first link in this thread and open it (eskimo something). Scroll down to the Maximum Range Calculator and open it. Enter your known data and calculate. I did your calculation using 1400 feet per second velocity, a Ballistic Coefficient of .15 and a bullet weight of 40 grains and a G1 drag function to come up with 2.5 miles (one mile is 1760 yards so you devide the answer you are given in yards by 1760 for the answer in miles)
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GRAVITY. It's not just a good idea. It's the LAW!
#11
03-05-2005, 01:39 AM
 Junior Member Join Date: Mar 2005 Posts: 2

Thanks 4KED Horn.
Just about to get my first rifle here in France. Want to be safe using it
Ralph
#12
03-28-2005, 07:30 AM
 Junior Member Join Date: Mar 2005 Location: West Palm Beach, FL Posts: 3

Probably one of the nest I've ever seen is here:

http://ballistics.ntinnovations.com/

It had a read only section that will even give you the ideal barrel twist for a given load. You can compare several different rounds or variables.
#13
04-12-2005, 04:10 PM
 Silver Member Join Date: Mar 2005 Location: Wyoming Posts: 198

I don't currently have the funds to a pda, but do have a ti-86 graphing calculator. does anyone know of a ballistics program that I could change into z80 (?) language so the calculator can recognize it. I don't have any programming software, but do know how to write programs in notepad and transfer them to my calculator. Any help on this would be appreciated.
__________________
"I am a stone. I do not move. Very slowly, I put snow in my mouth and he won't see my breath. I take my time. . . I have only one bullet. I aim at his eye. Very gently, my finger presses on the trigger. I do not tremble. I have no fear"
#14
05-30-2005, 04:26 PM
 Junior Member Join Date: May 2005 Posts: 3

Thanks for starting this post. Ihave always used the JBM calculater and have had problems at times accessing his site. It is real nice to have a downloadable one that can be placed on my computer. Like others mentioned, once I get my loads perfected I am going to make cheat sheets for my rifles.
Thanks Again-
John
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"If guns cause crime, then mine are defective" Unknown author
Never argue with an idiot, He will only bring you down to his level and then beat you with experience

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