Good free ballistic software?

stoop14

stoop14

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Looking for a program I can put the distance I'm shooting, bullet weight Fps and it will tell me how many moa I need to move my scope up to be on target.
 
CyaN1de has it right. Jbm is a great program to use that is free. Just make sure you have as much "accurate" information as you can collect. the more information, the more accurate your results. I have used this program out to 1900yds with my rifles. It was very consistant out to 1500yds, but started to deviate a little after that. That can be attributed to many factors of which few can adjust for. This is the distance that my 210Berger Vld's transition between supersonic to sub-sonic. Allot can happen at that point. Twist rpm may drop to create an instability etc.

All in all, just try it, and have fun stoop14! thats what it is all about!
 
Thanks guys, now when it gives me a chart and at the 500 yard it says moa drop -12.2 does this mean I have to put my moa on my scope 12.2? So on a 1/4 moanscope that's 49 clicks. Or does the chart not take into account how a 1/4moa click at 400 yards is 1 full moa? So I would only need to click around 10? I'm using the jm ballistics one.
 
MOA is MOA no matter the distance.

1/4 min adjustment at 400yds is still a 1/4 min adjustment. At 400yds 1 "click" will move you approx 1" which, at 400yds, is 1/4 moa. 1" at 100yds is 1moa, 2" at 200yds is 1moa, 3" at 300yds is 1moa, etc, etc ,etc.....
stoop14 said:
Or does the chart not take into account how a 1/4moa click at 400 yards is 1 full moa?
Click to expand...


If you used a 100yd Zero and your come up to 500 is 12.2 MOA then you come up 12.2 MOA from your 100yd zero regardless of what your "click" value is. If you have 1/4 min adjustments then you would go up 48.8 clicks (round to 49, which would be 98 "clicks" if you used a scope with 1/8 min adjustments)

Learn to use the MOA rather than number of clicks.

If you have, lets say, 10 MOA per revolution....you would come up 1 full revolution (10 Minutes [40 clicks]) + 2.25 minutes (9 clicks).

If your scope has 6 minutes/revolution as mine does then you come up 2 full revolutions (96 x 1/8 min clicks) + 1/4 moa (2 x 1/8min clicks).

Much easier than trying to count out 49/98 "clicks", keep those for the smaller adjustments under 2 minutes of for the in betweens such as 12.5 minutes (1 revolution + 2 mins + 2 clicks for 10 min/revolution 1/4 moa scope)

I have seen guys counting out each minute as they go from a 300m zero to try and get to 800m (approx 20 minutes, which is 3 revolutions + 2 minutes on my scopes which, by the way, would be 160 clicks if you had to count them all out :))
 
Google FBC-V3. It will take you to a site that has a decent, free, excel based program that will run on blackberry phones. Not sure if other smart phones will run it. I cross reference its solutions with the Litz data on JBM before I take it out ( have to reajdust BC on FBC-V3).
 
Another good free program is on bergers web site. It was written by Brian Litz. The same program that came with his book Applied Ballistics for long range shooting minus the spin drift. By the way I highly recomend the book. If I would of read that when I got into LR It would have steepened my learning curve.
 
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