Can someone direct me where I can find the equations used for ballistic calculators?

This is one of the better free ones, but I'm going to make it portable and cheaper than everything else out there.

http://www.eskimo.com/~jbm/calculations/traj/traj.html

Look at Barret's BORS:

http://www.barrettrifles.com/optics_bors.aspx

$1500.00 MSRP. That's outrageous.

Cheytac has their CABC, but I haven't found an MSRP on it, but I can bet the software is expensive.

http://www.cheytac.com/2007%20CABC%20Flyer%20Consumer.pdf

Mine won't be pretty or flashy if I get it to work, but I hope to have an MSRP of $350.00 for the entire unit.

So, I know we have people like FLTC, and Groundhog whacka here. If you were able to afford a ballistics computer, what features would you want in it?

Thanks in advance for the information.

TLM

Seeing as how the BORS doesn't have a built in rangefinder or wind meter, it really just takes up a lot more room than a click chart. Its a neat idea just not practical for anything I would use it for. It would be fine for blasting prairie poodles or the likes, but I wouldn't want to worry about beating up an electronic piece of equipment on a hunt where there was a lot of hiking in nasty terrain, let alone in a combat situation.

Sorry for the hijack, but I have a quick question about trajectory too.

Since I've never shot past 100 yards I was never able to test this for myself, so I figured I's ask here.


Ok, so say I have my rifle zeroed at 100 yards and my scope has 1/4" (at 100 yards) clicks.

Now say that I want to shoot a target at 300 yards and that my bullet drop (with my 100 yard zero) would be 12 inches.

Would I click up 48 clicks (the "12" marking on my scope) or just 12 clicks (the "3" marking on my scope) to make up for the drop?

The whole MOA thing is slightly confusing.

Or maybe I'm just slightly dumb :D

Thanks.

1 moa = 1" at 100y, 2" at 200y, 3" at 300y and so on (Well 26.6mm at 100y but we just use 1") so for 12" of correction at 300y you'll need 4 MOA or 16 clicks on a 1/4moa scope. 50" at 500y = 10 MOA or 40 Clicks.

^ Oh my bad, I put 300 yards in my original post when I should have put 400.

But you answered my question nonetheless.

Thank you.

So can anyone help me out?