I found here and there some rudimental web pages only for very simple ballistic calculation..
There are some more refined online applications for free?? Any downloadable programs??
I would like, at minimum, to be able to input BC, SD, velocity, bullet mass, compensate for temperature and altitude (air density) and wind deflection. and calculate trajectory and velocity at various distances with different firing angles.
Powder parameters would be nice to have too but not indispensable.
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It seems to have everything on your list except firing angle. I believe that firing angle (upslope / downslope) can be easily converted to an equivalent horizontal distance with some simple trig.
I recommend Exbal. For $70 you get a really complete ballistics calculator that will run on a PC, Palm PDA or Pocket PC PDA. This thing will do everything except cook breakfast. I really like the ballistic reticle feature, which lets you calculate what the Leupold (and other) "hold over" bars are going to do for a particular load. You can print little range tables to tape to your stock.
Here's a link -
Perry Systems Exbal (http://www.perry-systems.com/calculator.htm)
February 12, 2009, 07:21 AM
Google "GNU Ballistic Calculator."
February 12, 2009, 07:29 AM
Ammoguide.com got a pretty good one...try that.
February 12, 2009, 08:47 AM
pointblank is really good, a quick Google should yield a free download
February 12, 2009, 09:49 AM
Here is the link for pointblank that krochus mentioned.